CFX SERIES
OWNER’S MANUAL
AND WARRANTY REGISTRATION
12, 16, AND 20-CHANNEL
MIC/LINE MIXERS
WITH DIGITAL EFFECTS
CAUTION
WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT
SERIAL NUMBER
MANUFACTURING DATE
EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE. DO NOT REMOVE COVER.
CFX12 MIXER
RISK OF ELECTRIC SHOCK
DO NOT OPEN
NO USER SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED PERSONNEL.
AVIS: RISQUE DE CHOC ELECTRIQUE
—
NE PAS OUVRIR
12 CHANNEL COMPACT INTEGRATED LIVE SOUND MIXER
REPLACE WITH THE SAME TYPE FUSE AND RATING.
DISCONNECT SUPPLY CORD BEFORE CHANGING FUSE
UTILISE UN FUSIBLE DE RECHANGE DE MÊME TYPE.
DEBRANCHER AVANT DE REMPLACER LE FUSIBLE
STEREO
PLUG
CONCEIVED AND DESIGNED BY MACKIE DESIGNS INC
ARE TRADEMARKS OR REGISTERED TRADEMARKS OF MACKIE DESIGNS INC.: "MACKIE", "EMAC", AND THE "RUNNING MAN" FIGURE
•
WOODINVILLE
•
WA
•
USA
•
MADE IN CHINA
•
FABRIQUE AU CHINE
•
COPYRIGHT ©1998 THE FOLLOWING
•
MONO PLUG
•
PATENT PENDING
INSERT ALL THE WAY IN TO
THE "SECOND CLICK"
TIP OUT TO EFFECTS DEVICE
RING RETURN FROM EFFECTS
POWER
ON
DIRECT OUT WITH SIGNAL
INTERRUPTION TO MASTER
FOR USE AS AN EFFECTS LOOP
(TIP= SEND, RING RETURN)
=
OPTIONAL USES FOR INSERTS
120V, 50/60 Hz,
35 WATTS
STEREO EFX
RETURN
EFX SEND
TAPE
TAPE
MAIN INSERT MAIN OUT
MAIN OUT
LAMP
12V 0.5A
MIC 1
MIC 2
MIC 3
MIC 4
MIC 5
MIC 6
MIC 7
MIC 8
INPUT OUTPUT
L
R
L
L
1
1
2
L
R
S
L
L
R
R
2
R
R
EFX
BAL/UNBAL
BAL/UNBAL
BAL/UNBAL
BAL/UNBAL
BAL/UNBAL
BAL/UNBAL
BAL/UNBAL
BAL/UNBAL
1
1
3
4
(MONO)
(MONO)
LINE IN
LINE IN
LINE IN
LINE IN
LINE IN
LINE IN
LINE IN
LINE IN
L
9
11
FOOT
SWITCH
LEFT
LEFT
2
2
RIGHT
RIGHT
INSERT
INSERT
INSERT
INSERT
INSERT
INSERT
INSERT
INSERT
10
12
R
75Hz
SUB OUT
UTILITY OUT
AUX SEND
SUB OUT
PHONES
1
2
3
4
5
6
7
8
9
11
12
U
U
U
U
U
U
U
U
U
U
10
ZERO
LEVEL
ZERO
LEVEL
ZERO
LEVEL
ZERO
LEVEL
ZERO
LEVEL
ZERO
LEVEL
ZERO
LEVEL
ZERO
LEVEL
6
+50
6
+50
6
+50
6
+50
6
+50
6
+50
6
+50
6
+50
-20 +20
-20 +20
TRIM
-15dB +30dB
TRIM
-15dB +30dB
TRIM
-15dB +30dB
TRIM
-15dB +30dB
TRIM
-15dB +30dB
TRIM
-15dB +30dB
TRIM
-15dB +30dB
TRIM
-15dB +30dB
TRIM
TRIM
LOW CUT
LOW CUT
LOW CUT
LOW CUT
LOW CUT
LOW CUT
LOW CUT
LOW CUT
15
10
15
10
100 Hz
100 Hz
100 Hz
100 Hz
100 Hz
100 Hz
100 Hz
100 Hz
MASTER SEND
AUX
1
AUX
1
AUX
1
AUX
1
AUX
1
AUX
1
AUX
1
AUX
1
AUX
1
AUX
1
AUX
U
U
U
U
U
U
U
U
U
U
U
5
0
5
0
1
5
5
O O
+15
O O
+15
O O
+15
O O
+15
O O
+15
O O
+15
O O
+15
O O
+15
O O
+15
O O
+15
O O
+15
U
U
U
U
U
U
U
U
U
U
U
10
15
10
15
2
2
2
2
2
2
2
2
2
2
2
63
125
250
500
1K
2K
4K
8K
16K
O O
+15
O O
+15
O O
+15
O O
+15
O O
+15
O O
+15
O O
+15
O O
+15
O O
+15
O O
+15
O O
+15
PRE FADER
U
PRE FADER
U
PRE FADER
U
PRE FADER
U
PRE FADER
U
PRE FADER
U
PRE FADER
U
PRE FADER
U
PRE FADER
U
PRE FADER
U
STEREO GRAPHIC EQ
EFX
U
E1FX
E1FX
E1FX
E1FX
E1FX
E1FX
E1FX
E1FX
E1FX
E1FX
1
CFX12 MIXER
(EXT)
(EXT)
(EXT)
(EXT)
(EXT)
(EXT)
(EXT)
(EXT)
(EXT)
(EXT)
(EXT)
O O
+15
O
O
+15
O
O
+15
O
O
+15
O
O
+15
O
O
+15
O
O
+15
O
O
+15
O
O
+15
O
O
+15
O O
+15
12 CHANNEL COMPACT INTEGRATED LIVE SOUND MIXER
U
U
U
U
U
U
U
U
U
U
PHANTOM POWER
E2FX
E2FX
E2FX
E2FX
E2FX
E2FX
E2FX
E2FX
E2FX
E2FX
CUSTOM 32-BIT PRECISION
DIGITAL STEREO EFFECTS PROCESSOR
CLIP
(INT) RETURN MASTERS
(INT)
(INT)
(INT)
(INT)
(INT)
(INT)
(INT)
(INT)
(INT)
(INT)
O O
+15
O O
+15
O O
+15
O O
+15
O O
+15
O O
+15
O O
+15
O O
+15
O O
+15
O O
+15
EFX
2
48v
EQ
EQ
EQ
EQ
EQ
EQ
EQ
EQ
EQ
EQ
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
POWER
STATUS
HI
12k
HI
12k
HI
12k
HI
12k
HI
12k
HI
12k
HI
12k
HI
12k
HI
12k
HI
12k
LEFT RIGHT
-15 +15
U
-15 +15
U
-15 +15
U
-15 +15
U
-15 +15
U
-15 +15
U
-15 +15
U
-15 +15
U
-15 +15
U
-15 +15
U
EFX 1 R+E2T0URN
U
O
O
+15
O
O
+15
O
O
+15
AUX 1
EFFECTS TO MONITOR
O
O
+15
O
O
CLIP
22
10
7
EFX 2
SEND
TO MAIN MIX
AUX 2
HI
MID
3k
HI
MID
3k
MID
MID
MID
MID
MID
MID
MID
MID
REVERSE
GATED
CATHEDRAL
LG. HALL
MD. HALL
LG. PLATE
MD. PLATE
SM. ROOM
NORMAL
DELAY
DELAY
DELAY
DELAY
1
2
3
4
-15 +15
600
-15 +15
600
-15 +15
600
-15 +15
600
-15 +15
600
-15 +15
600
-15 +15
600
-15 +15
600
-15 +15
U
-15 +15
U
4
O
O
+20
TAPE LEVEL
2
LOW
MID
400Hz
LOW
MID
400Hz
150
100
1.5k FREQ
150
100
1.5k FREQ 150
1.5k FREQ
150
100
1.5k FREQ
150
100
1.5k FREQ
150
100
1.5k FREQ
150
100
1.5k FREQ 150
1.5k FREQ
0
CHORUS
FLANGE
PHASER
SPRING
BREAK SWITCH
2
-15 +15
U
-15 +15
U
8k
8k
100
8k
8k
8k
8k
8k
100
8k
(MUTES ALL CHANNELS)
U
U
U
U
U
U
U
U
4
ZERO
LEVEL
SET
LOW
80Hz
LOW
80Hz
LOW
80Hz
LOW
80Hz
LOW
80Hz
LOW
80Hz
LOW
80Hz
LOW
80Hz
LOW
80Hz
LOW
80Hz
7
EFX
NORMAL
10
20
30
O
O
MAX
-15 +15
-15 +15
-15 +15
-15 +15
-15 +15
-15 +15
-15 +15
-15 +15
-15 +15
-15 +15
PHONES LEVEL
U
PAN
PAN
PAN
PAN
PAN
PAN
PAN
PAN
PAN
PAN
WIDE
BYPASS
0
10
TIME
RATE
0
10
0dB
RUDE
STEREO
=
0dBu
REVERBS
DELAYS
CHORUS/FLANGE/PHASER
DAMPING
DEPTH
O
O
+10
SOLO
UTILITY OUT LEVEL
L
R
L
R
L
R
L
R
L
R
L
R
L
R
L
R
L
R
L
R
1
2
3
4
5
6
7
8
9-10
11-12
SUB
SUB
SUB
SUB
1
2
3
4
ASSIGN
ASSIGN
ASSIGN
ASSIGN
ASSIGN
ASSIGN
ASSIGN
ASSIGN
ASSIGN
ASSIGN
ASSIGN
ASSIGN
ASSIGN
ASSIGN
MAIN MIX
MUTE
MUTE
MUTE
MUTE
MUTE
MUTE
MUTE
MUTE
MUTE
MUTE
dB
10
dB
10
dB
10
dB
10
dB
10
dB
10
dB
10
dB
10
dB
10
dB
10
dB
10
dB
10
dB
10
dB
10
dB
10
1
-
2
4
1
-
2
4
1
-
2
4
1
-
2
4
1
-
2
4
1
-
2
4
1
-
2
4
1
-
2
4
1
-
2
4
1
-
2
4
LEFT
LEFT
LEFT
LEFT
5
U
5
5
U
5
5
U
5
5
U
5
5
U
5
5
U
5
5
U
5
5
U
5
5
U
5
5
U
5
5
U
5
5
U
5
5
U
5
5
U
5
5
U
5
3
-
3
-
3
-
3
-
3
-
3
-
3
-
3
-
3
-
3
-
RIGHT
RIGHT
RIGHT
RIGHT
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
20
30
20
30
20
30
20
30
20
30
20
30
20
30
20
30
20
30
20
30
20
30
20
30
20
30
20
30
20
30
40
50
60
40
50
60
40
50
60
40
50
60
40
50
60
40
50
60
40
50
60
40
50
60
40
50
60
40
50
60
40
50
60
40
50
60
40
50
60
40
50
60
40
50
60
SOLO
PFL
SOLO
PFL
SOLO
PFL
SOLO
PFL
SOLO
PFL
SOLO
PFL
SOLO
PFL
SOLO
PFL
SOLO
PFL
SOLO
PFL
O O
O
O
O O
O
O
O
O O
O
O
O O
O
O
O
O
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INTRODUCTION
Thank you for choosing a Mackie Designs
CFX™ Mixer! These compact live-sound mixers
are designed to meet the sound reinforcement
needs of almost any small to medium-sized club,
meeting room, sanctuary, or outdoor gathering.
Here’s a quick glance at all the features
you’ve acquired:
Comprehensive master section, with:
•
•
•
•
•
•
•
•
•
•
Four 60mm submix mono faders
Separate Left & Right assign for each sub
60mm main mix stereo fader
TRS insert jacks for main mix
Balanced XLR stereo main outputs
Balanced XLR mono subwoofer output
12-segment stereo LED metering
Mackie’s (in)famous Rude Solo Light
9-band stereo graphic EQ (main mix)
EMAC™ 32-bit digital stereo effects with
footswitch jack
8, 12, or 16 mono channels, with:
•
Variable input trim
(+6 to +50 dB mic, –15 to +30 dB line)
Phantom power (globally switched)
Zero Level gain setting indicator LED
Switchable 100Hz low-cut filter
TRS insert jack
2 pre/post-fader aux sends
2 post-fader effects sends
3-band mid-sweep EQ
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
2 aux sends with master level controls
2 effects sends with master level controls
Level controls for stereo effect returns
Break switch for ‘worry-free’ intermissions
RCA tape out
RCA tape in with stereo level control
Headphone output with level control
Utility out with level control
Pan, mute, and 1-2/3-4 busing
PFL solo
60mm mono fader
12V BNC lamp socket
2 stereo line channels, with:
ABOUT THIS MANUAL
•
•
•
•
•
•
•
Variable input trim (–20 to +20 dB)
2 pre/post-fader aux sends
2 post-fader effects sends
4-band EQ
Pan, mute, and 1-2/3-4 busing
PFL solo
Absolutely most important page:
Before you start engineering, please read
the “Quick Start” section on page 5. It’s a list of
steps that will familiarize you with the CFX
Mixer and help you set up a basic performance.
About those blue numbers:
60mm stereo fader
You’ll notice numbers in blue circles, like
this: . Every feature on the CFX Mixer has
one of these numbers assigned to it. Whenever
a feature is mentioned, described or illustrated,
its number will be right next to it.
Please write your serial number here for
future reference (i.e., insurance claims, tech
support, return authorization, etc.):
Purchased at:
Date of purchase:
Part No. 820-104-00 Rev. C 1/02
©2002 Mackie Designs Inc. All Rights Reserved.
3
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CONTENTS
SAFETY INSTRUCTIONS.........................................2
INTRODUCTION ...................................................3
ABOUT THIS MANUAL ..........................................3
QUICK START ......................................................5
APPLICATIONS DIAGRAMS....................................6
MASTER SECTION FEATURES................................15
MAIN MIX FADER ........................................15
METERS ......................................................15
RUDE SOLO.................................................15
STEREO GRAPHIC EQ....................................15
TAPE LEVEL .................................................16
BREAK SWITCH ...........................................16
PHONES LEVEL ............................................16
UTILITY OUT LEVEL ......................................16
SUB FADERS ................................................16
LEFT/RIGHT SUB ASSIGN .............................16
AUX MASTER SEND ......................................17
EFX 1 MASTER SEND ....................................17
EFX 1 RETURN ............................................17
EMAC EFFECTS PROCESSOR ...........................17
EFX 2 SEND .................................................17
TO MAIN MIX .............................................17
EFFECTS TO MONITOR ..................................18
PRESET SELECT ............................................18
TIME/RATE .................................................19
DAMPING/DEPTH .......................................19
WIDE .........................................................19
BYPASS ......................................................19
CLIP ...........................................................19
PATCHBAY FEATURES............................................8
MIC .............................................................8
LINE IN .........................................................8
INSERT .........................................................8
EFFECTS: SERIAL OR PARALLEL? ...................9
STEREO LINE IN .............................................9
MAIN OUT ....................................................9
SUBWOOFER OUT..........................................9
MAIN INSERT ................................................9
UTILITY OUT ...............................................10
SUB OUT ....................................................10
AUX SEND ..................................................10
EFX SEND ...................................................10
STEREO EFX RETURN ....................................10
TAPE INPUT ................................................11
TAPE OUTPUT..............................................11
PHONES .....................................................11
EFX FOOTSWITCH ........................................11
LAMP .........................................................11
AC POWER INPUT........................................11
POWER SWITCH ..........................................11
POWER STATUS ...........................................11
GENERAL PRECAUTIONS AND CONSIDERATIONS....20
APPENDIX A: Service Info ...................................20
Warranty Service .....................................20
Troubleshooting ........................................20
Repair.....................................................21
APPENDIX B: Technical Info ..................................21
Specifications ...........................................21
Block Diagram ..........................................22
Contributors and Colophon .........................23
CFX SERIES LIMITED WARRANTY .........................23
CHANNEL STRIP FEATURES ..................................12
PHANTOM POWER ......................................12
TRIM .........................................................12
ZERO LEVEL ................................................12
LOW CUT ....................................................12
AUX...........................................................12
PRE FADER..................................................13
EFX 1 (EXT).................................................13
EFX 2 (INT) .................................................13
EQ .............................................................13
PAN ...........................................................14
MUTE .........................................................14
ASSIGN ......................................................14
FADER ........................................................14
SOLO PFL....................................................14
for more information about this and other Mackie products.
4
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1
U
QUICK START
ZERO
LEVEL
6
+50
-15dB +30dB
TRIM
LOW CUT
100 Hz
15
10
15
10
MASTER SEND
We know you can’t wait to
get the show on the road.
Who has time to read a
booooring manual? That’s
fine — the CFX Mixer is
AUX
1
U
AUX
U
5
0
5
0
1
O O +15
U
5
5
O O +15
U
10
15
10
15
2
2
O O +15
63
125
250
500
1K
2K
4K
8K
16K
O O +15
U
PRE FADER
U
STEREO GRAPHIC EQ
EFX
designed to set up quickly and operate intu-
itively — but please, READ THIS PAGE!
E1FX
1
(EXT)
CFX12 MIXER
(EXT)
O O +15
U
O O +15
12 CHANNEL COMPACT INTEGRATED LIVE SOUND MIXER
PHANTOM POWER
E2FX
CUSTOM 32-BIT PRECISION
DIGITAL STEREO EFFECTS PROCESSOR
CLIP
(INT)
ZERO THE CONSOLE:
O O +15
U
EFX 2 (INT) RETURN MASTERS
48v
EQ
U
U
U
U
U
POWER
STATUS
1. Turn everything off, including the mixer’s
POWER switch and PHANTOM POWER
switch.
HI
12k
LEFT RIGHT
O O +15
O O +15
O O +15
O O +15
O O
EFX 1 R+E2T0URN
-15 +15
U
CLIP
22
10
7
EFX
SEND
2
TO MAIN MIX
AUX
1
AUX
2
U
EFFECTS TO MONITOR
MID
REVERSE
GATED
CATHEDRAL
LG. HALL
MD. HALL
LG. PLATE
MD. PLATE
SM. ROOM
NORMAL
DELAY
DELAY
DELAY
DELAY
1
2
3
4
4
-15 +15
600
O O +20
TAPE LEVEL
2. Channel strip TRIM AUX, EFX, and
,
2
0
150
100
1.5k FREQ
8k
CHORUS
FLANGE
PHASER
SPRING
Fader down.
3. STEREO GRAPHIC EQ sliders centered.
4. MASTER AUX and EFX SENDS, and EFX
RETURNS down.
5. Channel strip EQ and PAN controls
BREAK SWITCH
2
(MUTES ALL CHANNELS)
U
4
ZERO
LEVEL
SET
7
LOW
80Hz
NORMAL
EFX
10
20
30
O O MAX
PHONES LEVEL
U
-15 +15
PAN
WIDE
BYPASS
0
10
TIME
RATE
0
10
0dB
=
0dBu
SOLO
STEREO
REVERBS
DELAYS
CHORUS/FLANGE/PHASER
DAMPING
DEPTH
O O +10
UTILITY OUT LEVEL
RUDE
L
R
1
SUB
SUB
SUB
SUB
centered.
1
2
3
4
ASSIGNDOWN
UP
UP
UP
ASSIGN
ASSIGN
ASSIGN
ASSIGN
MAIN MIX
MUTE
6. Channel strip ASSIGN 1-2 and MUTE
DOWN
dB
10
dB
10
dB
10
dB
10
dB
10
dB
10
1
-
2
4
LEFT
LEFT
LEFT
LEFT
switches down.
5
U
5
5
U
5
5
U
5
5
5
U
5
5
U
5
UP
3
-
RIGHT
UP
RIGHT
DOWN
RIGHT
UP
RIGHT
UP
7. Channel strip LOW CUT
ASSIGN 3-4 switches up.
8. SUB 1 ASSIGN LEFT SUB 2 ASSIGN
,
PRE FADER, and
U
5
10
10
10
10
10
10
,
20
30
20
30
20
30
20
30
20
30
20
30
RIGHT down; all other SUB ASSIGN
switches up.
40
50
60
40
50
60
40
50
60
40
50
60
40
50
60
40
50
60
SOLO
PFL
O
O
O
O
O
O
9. MAIN MIX and SUB Faders down.
MAKE THE CONNECTIONS:
1. Connect your amp’s outputs to your
speaker inputs (unless, of course, you have
powered monitors).
SET THE LEVELS:
2. Plug all the sound system components into 1. Choose one of the microphones or instru-
suitable AC outlets, properly grounded and
capable of delivering adequate current.
3. Using XLR or TRS cables, make connec-
tions from your mixer’s MAIN OUT to your
amplification system’s line inputs.
ments you connected. Make some noise. If
it’s a microphone, sing at your normal
singing volume. If it’s a synthesizer, play it
at its normal output level.
2. While making noise, turn up that channel’s
TRIM until the adjacent ZERO LEVEL starts
blinking.
4. Make connections from your microphones
and instruments to the mixer: Connect
balanced microphones to the mono channel 3. Disengage (up) that channel’s MUTE
.
MIC jacks. (For condenser microphones,
engage the PHANTOM POWER switch,
located just above the meters.) Connect
line-level instruments (synthesizers, guitar
effects, direct boxes) to the mono or stereo
channel LINE IN TRS jacks.
4. Raise that channel’s fader to unity gain
(“ ” label). You should be hearing your
U
noise now.
5. If necessary, apply channel EQ changes.
(You may need to compensate for level
changes with the channel fader.)
6. Repeat steps 1 through 5 for the remaining
active channels.
7. Stop making noise. Everyone: start making
5. Turn all the power switches on, leaving the
amplifier’s switch for last.
6. Turn up the MAIN MIX Fader to the
“–30” label, for now. We’ll crank it up later on.
music.
7. Turn up SUB Faders
(“ ” label).
1
and to unity gain
2
5
U
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TWEAK THE MIX:
KNOW THESE THINGS:
1. Engage MUTE on all channels except your
rhythm section (drums & bass).
2. Adjust the rhythm section’s channel faders
•
Never listen to loud music for prolonged
periods. Please see “Safety Instructions” on
page 2 for information on hearing protection.
to get a good balance of levels.
3. Un-mute the other active channels and
•
•
•
Never plug amplifier outputs into anything
except speakers.
Never use guitar cables to connect amplifiers
to speakers.
Before making connections to an external
amp or reconfiguring an amp’s routing,
turn the amp’s level (gain) controls down,
turn the power off, make the changes, turn
the power back on, and then turn the level
controls back up.
adjust their faders.
4. Now that you have a rough mix going, turn
up the MAIN MIX Fader to a comfortable
listening level.
5. If the overall mix has an equalization
problem, make adjustments to the STEREO
GRAPHIC EQ. If an individual channel is
the problem, use its EQ instead.
•
•
When you shut down your equipment, turn
off any external amplifiers first. When
powering up, turn on the amplifiers last.
Save the shipping box and packing material!
You may need them someday, and you probably
don’t want to have to pay for that again.
6. Using channel EFX 2 (INT) and the EMAC
EFFECTS PROCESSOR, experiment with
adding some effects.
7. Depending on how much time you’ve got,
keep tweaking. Walk the room to see how it
sounds away from your mixer. Keep tweaking.
APPLICATIONS DIAGRAMS
Keyboard, or other line-level input
Left PA Speaker
Right PA Speaker
Stereo EQ
Keyboard, or other line-level input
Stereo
Compressor
Drum
Guitar Effects
Machine
Stereo
CD Player
Power Amplifier
L
L
9
5
6
7
8
10
11
12
L
R
L
R
R
R
1
2
3
4
SUB OUT
MAIN OUT
MAIN OUT
BAL/UNBAL
MAIN
TAPE TAPE
75Hz
L
R
CHANNEL INPUTS
CHANNEL INSERTS AUX SENDS EFX SENDS
INSERT
OUT
IN
UTIL OUT
BAL/UNBAL
PHONES
OUT
SUB OUTS
STEREO EFX RETURNS
BAL/UNBAL
BAL/UNBAL
BAL/UNBAL
2
1
1
2
1
2
L
R
1
2
3
4
5
6
7
8
L
L
1
2
3
4
R
R
Digital Delay
Mono in / stereo out
Reverb
Stereo Compressor
Stereo Compressor
Stereo EQ
Stereo
Power Amplifier
CFX•12 — Small Club Gig
6
Stage Monitor
Stage Monitor
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Subwoofer
Keyboard, or other line-level input
CFX•16 — Large Club Gig or Auditorium
using a Subwoofer
Keyboard, or other line-level input
Mono
Drum
Power Amplifier
Machine
Left PA Speaker
Right PA Speaker
Stereo EQ
Stereo
Direct Box
Compressor
Guitar Effects
Guitar Effects
Mono
Power Amplifiers
CD Player
L
L
5
6
7
8
9
10
11
12 13
14
15
16
L
R
L
R
R
R
1
2
3
4
SUB OUT
75Hz
MAIN OUT
MAIN OUT
BAL/UNBAL
MAIN
INSERT
TAPE TAPE
OUT IN
L
R
CHANNEL INPUTS
CHANNEL INSERTS AUX SENDS EFX SENDS
UTIL OUT
BAL/UNBAL
PHONES
OUT
SUB OUTS
BAL/UNBAL
STEREO EFX RETURNS
BAL/UNBAL
BAL/UNBAL
2
1
1
2
1
2
L
R
1
2
3
4
5
6
7
8
L
L
1
2
3
4
R
R
Digital Multitrack Recorder
Optional Live Recording
Digital Delay
Mono in / stereo out
Reverb
Stereo Compressor
Stereo Compressor
Mono EQ
Mono EQ
Subwoofer
Keyboard, or other line-level input
Mono Power Amplifiers
Keyboard, or other line-level input
Stage Monitor
Stage Monitor
Mono
Drum
Power Amplifier
Machine
Wireless
Left PA Speaker
Right PA Speaker
Microphone
Receivers
Stereo EQ
Direct Box
Stereo
Compressor
Guitar Effects
Guitar Effects
Stereo
Power Amplifier
CD Player
L
L
7
8
9
10
11
12 13
14
15
16 17
18
19
20
L
R
L
R
R
R
1
2
3
4
5
6
SUB OUT
75Hz
MAIN OUT
MAIN OUT
BAL/UNBAL
MAIN
INSERT
TAPE TAPE
OUT IN
L
R
CHANNEL INPUTS
CHANNEL INSERTS AUX SENDS EFX SENDS
UTIL OUT
BAL/UNBAL
PHONES
OUT
SUB OUTS
BAL/UNBAL
STEREO EFX RETURNS
BAL/UNBAL
BAL/UNBAL
2
1
1
2
1
2
L
R
1
2
3
4
5
6
7
8
L
L
1
2
3
4
R
R
Cassette or DAT Recorder
Digital Delay
Stereo EQ
Stereo EQ
Mono in / stereo out
Reverb
Stereo Compressor
Stereo Compressor
Stereo
Power
Stereo
Power
Amplifier
Amplifier
Mono EQ
Mono
Assistive Listening
Transmitter
Power
Amplifier
CFX•20 — Church Sound Reinforcement
with Separate Utility Mix
Cry Room
Nursery
Left
Right
Chapel
Stage Monitor
7
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PATCHBAY FEATURES
At the risk of stating the obvious, this is
where you plug everything in: microphones,
line-level instruments, effects, headphones
and the ultimate destination for your sound:
PA system, tape recorder, etc.
These unbalanced jacks are configured thusly:
SEND to processor
ring
“tip”
(TRS plug)
tip
sleeve
This plug connects to one of the
mixer’s Channel Insert jacks.
“ring”
RETURN from processor
MIC
SHIELD
COLD
HOT
The CFX Mixer is equipped with rugged, low
noise, phantom-powered microphone pream-
plifiers, providing up to 50 dB of crystal-clear
amplification. Their balanced circuitry rejects
all manner of extraneous interference. Profes-
sional condenser, dynamic, and ribbon mics will
all sound excellent through these XLR inputs.
You can plug in almost any kind of balanced
mic that has a standard XLR-type male mic
connector.
1
Tip = Send (to effects device input)
Ring = Return (from effects device output)
Sleeve = Common ground (connect shield
to all three sleeves)
3
2
XLR BALANCED WIRING
Specialty “Y” cables, developed just for these
jacks, are widely available.
Besides being used for inserting external
devices, these jacks can also be used as chan-
nel direct outputs; post-TRIM, post-LOW CUT
,
and pre-EQ. Here are three ways you can use
the channel INSERT jacks:
RING
(COLD)
LINE IN
TIP
(HOT)
The line inputs share circuitry (but not
phantom power) with the mic preamps, and
can be driven by balanced or unbalanced
sources at almost any level. You can use these
TRS inputs for virtually any signal you’ll come
across, from –25 dBu up to +38 dBu.
SLEEVE
(SHIELD)
TRS BALANCED WIRING
MONO PLUG
Channel Insert jack
TIP
(HOT)
Direct out with no signal interruption.
SLEEVE
Insert only to first “click.”
(SHIELD)
TS UNBALANCED WIRING
INSERT
MONO PLUG
This is where you connect serial effects
such as compressors, equalizers, de-essers or
filters. The send is low-impedance (150 ohms),
capable of driving any line-level device. The re-
turn is high-impedance (10k ohms) and can be
driven by almost any device.
Channel Insert jack
Direct out with signal interruption.
Insert all the way in to the second “click.”
STEREO
PLUG
Channel Insert jack
For use as an effects loop.
(TIP= SEND to effect, RING = RETURN from effect.)
MIC
1
MIC
2
MIC
3
MIC
4
MIC
5
MIC
6
MIC
7
MIC
8
BAL/UNBAL
BAL/UNBAL
BAL/UNBAL
BAL/UNBAL
BAL/UNBAL
BAL/UNBAL
BAL/UNBAL
BAL/UNBAL
LINE IN
INSERT
LINE IN
INSERT
LINE IN
INSERT
LINE IN
INSERT
LINE IN
INSERT
LINE IN
INSERT
LINE IN
INSERT
LINE IN
INSERT
8
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EFFECTS: SERIAL OR PARALLEL?
MAIN OUT
Effects devices are used
Coming in two flavors, XLR and TRS, the
either in serial or in parallel: main output represents the end of the mixer
“Serial” means that the
entire signal is routed
chain, where your fully mixed and enhanced
stereo signal enters the real world.
through the effects device.
Examples: preamps, compressor/limiters,
graphic equalizers.
The XLR balanced outputs will add 6 dB
when connected to balanced inputs, thereby
elevating signal from the noise floor by that
“Parallel” means that a portion of the signal amount.
is tapped off to the device (usually via a mixer’s
aux send), processed and returned (usually via
The TRS balanced outputs offer the advan-
tage of having no 6 dB level change to deal with,
a mixer’s aux return), to be mixed with the origi- while still providing extraneous noise rejection.
nal “dry” signals. Multiple signals (via multiple
SUBWOOFER OUT
mixer channels) can all make use of the same
parallel effects device. Examples: reverb, digital
delay, chorus. See diagrams below.
The CFX Mixer has an integrated mono-
summing 75Hz 3rd-order low-pass filter. It taps
the left and right MAIN OUT
signals, mixes
Serial Device
them into a mono signal, then removes all but
the deepest bass information. Patch this balanced
XLR output to a high-powered mono-summed
amp and subwoofer (or an active subwoofer),
and the music police will be right over.
Insert
Insert
Send
Return
Signal Processor
(e.g., Compressor)
Processed
Signal
Dry Signal
Parallel Device
Aux
Aux
Output
Section
Send
Return
MAIN INSERT
Signal Processor
(e.g., Reverb)
Wet Signal
With nothing plugged into these jacks, the
mix signal goes from the mix amp straight
through to the MAIN MIX Faders . But when
you plug a serial device into these jacks, the mix
leaves the mixer, goes through the device and
back into the mixer’s main mix faders.
Mix
Processed
Signal
Stage
Channel Path
Dry Signal(s)
Dry Signal(s)
STEREO LINE IN
If you want to send your main mix through a
compressor/limiter or similar device, these are
the jacks for you. Since the insert is before the
mix faders, moving the fader will not alter the
signal strength sent to the compressor, thereby
preserving its compression characteristics.
These unbalanced jacks are configured the
same as the channel strip insert jacks. See
page 8 for wiring and usage information.
These balanced inputs are designed for ste-
reo or mono, balanced or unbalanced signals,
from –20 dB to +20 dB. These TRS inputs can
be used with just about any professional or
semipro instrument, effect or tape player.
When connecting a mono device (just one
cord), always use the LEFT (MONO) input and
plug nothing into the RIGHT input. A trick
called “jack normalling” will cause the signal to
appear on both sides.
STEREO EFX
RETURN
EFX SEND
TAPE
TAPE
MAIN INSERT MAIN OUT
MAIN OUT
LAMP
INPUT OUTPUT
12V 0.5A
L
R
L
L
1
1
2
L
R
S
L
L
R
R
2
R
R
EFX
1
1
3
4
(MONO)
(MONO)
L
9
11
FOOT
SWITCH
LEFT
LEFT
2
2
RIGHT
RIGHT
R
10
12
75Hz
SUB OUT
UTILITY OUT
AUX SEND
SUB OUT
PHONES
9
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UTILITY OUT
EFX SEND
The stereo signal at these TRS jacks is the
same as at the MAIN OUT , but with one
important difference:
The signal at these TRS outputs is post-
fader only, so they cannot be used as
traditional stage monitor cues. They’re in-
tended to patch into effects device inputs;
RING
(COLD)
TIP
(HOT)
SLEEVE
(SHIELD)
After the MAIN MIX Fader , the mix is
TRS BALANCED WIRING
sent through the UTILITY OUT LEVEL
trol, allowing you to set levels as desired
without disturbing the main mix level.
con- hence the name “EFX.” See EFX 1 (EXT)
and EFX 2 (INT) for more information.
Note: The EFX 2 signal path also feeds the
CFX Mixer’s internal EMAC EFFECTS PRO-
TIP
(HOT)
SUB OUT
SLEEVE
CESSOR
inputs. If you’re using EMAC and
(SHIELD)
In live sound applications, these TRS jacks
can be patched into one or two stereo amplifi-
ers, thereby allowing you to control levels
just one outboard processor, patch that proces-
sor via EFX SEND 1 for independent control of
the effects send level.
TS UNBALANCED WIRING
independently via the SUB Faders
Alternatively, use the MAIN OUT
feed the amplifiers and one stereo SUB OUT
.
We recommend going into a stereo reverb in
mono and returning in stereo. We have found
that on most “stereo” reverbs the second input
just ties up an extra EFX send and adds noth-
to
pair to feed a recorder.
In studio applications, these outputs can be ing to the sound. There are exceptions, so feel
used as four separate paths to feed four tracks free to try it both ways. If your effects device is
of a multitrack recorder.
true stereo all the way through, use EFX SEND 1
to feed its left input and EFX SEND 2 to feed
the right input.
See ASSIGN
and SUB ASSIGN
for
more information.
AUX SEND
STEREO EFX RETURN
To create a stage monitor mix, with levels
set independently from the main mix, patch
these TRS jacks into your monitor amplifier in-
puts. These jacks can also be used to feed the
inputs of an effects device.
Patch the outputs of external parallel ef-
fects devices to these inputs.
Note: The EFX 2 return signal is combined
with the signal from the CFX Mixer’s internal
EMAC EFFECTS PROCESSOR
. If you’re
See AUX
information.
and PRE FADER
for more
using EMAC and just one outboard processor,
patch the outboard processor via EFX 1 RETURN
for independent control of the effects return level.
When connecting a mono device (just one
cord), always use the LEFT (MONO) input and
plug nothing into the RIGHT input. A trick
called “jack normalling” will cause the signal to
appear on both sides.
STEREO EFX
RETURN
EFX SEND
TAPE
TAPE
MAIN INSERT MAIN OUT
MAIN OUT
LAMP
INPUT OUTPUT
12V 0.5A
L
R
L
L
1
1
2
L
R
S
L
L
R
R
2
R
R
EFX
1
1
3
4
(MONO)
(MONO)
L
9
11
FOOT
SWITCH
LEFT
LEFT
2
2
RIGHT
RIGHT
R
10
12
75Hz
SUB OUT
UTILITY OUT
AUX SEND
SUB OUT
PHONES
10
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TAPE INPUT
EFX FOOT SWITCH
Patch the outputs of your intermission en-
You can connect a normally-open foot switch
SLEEVE
SLEEVE
TIP
TIP
tertainment here. Any line-level mono or stereo to this connector to duplicate the function of
device can be used: tape, CD player, television switch, located in the EMAC
. Closing the switch
the BYPASS
EFFECTS PROCESSOR
connection causes the EFX BYPASS indicator
to light and mutes the effects.
Note: When a foot switch is plugged into
the FOOT SWITCH jack, the BYPASS switch
is disabled.
audio, etc. See BREAK SWITCH
for more
RCA UNBALANCED WIRING
information.
When connecting a mono device (just one
cord), you’ll need a “Y-splitter” RCA adapter. It
turns a mono output cord into two cords; so
both the left and right tape input jacks can be
patched. This adapter is widely available.
RING
(RIGHT)
TIP
(LEFT)
SLEEVE
(SHIELD)
Just like the BYPASS
switch, this
TRS HEADPHONE WIRING
affects only the internal EMAC EFFECTS
PROCESSOR and not any device plugged into
TAPE OUTPUT
Use these jacks to capture the entire perfor- STEREO EFX RETURN 2
.
TIP
(HOT)
mance to tape. The signal at these jacks is the
LAMP
SLEEVE
main mix, after the MAIN INSERT
fore the MAIN MIX Fader . The main mix
signal will be present at these jacks regardless any of the widely available 12VDC 0.5 amp
but be-
(GROUND)
This BNC-type connector will accept almost TS FOOTSWITCH WIRING
of the position of the MAIN MIX Fader.
gooseneck lamps, made by Littlite® and others.
If your work involves mixing in the back of
dark theaters, this lamp will likely become
PHONES
The stereo signal at these jacks is the same your best friend.
as at the MAIN OUT
tant differences:
, but with two impor-
AC POWER INPUT
After the MAIN MIX Fader , the mix is
sent through the PHONES LEVEL control,
allowing you to set levels as desired, without
This IEC Socket is where you connect the
supplied AC linecord to provide AC power to
the CFX Mixer. Plug the cord into a suitable
AC outlet, properly grounded and capable of
disturbing the main mix level.
When a channel’s SOLO PFL
is engaged, delivering adequate current.
the main mix signal at this output will be re-
If you happen to lose the AC linecord,
placed by the solo signal, allowing the engineer replacements are available at any office/
to audition channels without disturbing the
main mix.
The stereo PHONES jack will drive any
standard headphones to very loud levels.
Walkperson-type phones can also be used with
an appropriate adapter.
computer supply store.
POWER SWITCH
POWER STATUS
The POWER
switch is located on the
rear panel, adjacent to the AC Power Input
. Push the side of the switch labeled “ON
to turn the mixer on; you should see the
Note: Please see the “Safety Instructions” on
page 2 for information on hearing protection.
”
POWER STATUS
LED glow in confirma-
tion. To turn the mixer off, push the switch the
other way. (Let’s all say a big collective “Duh.”)
PHANTOM POWER
48v
CFX12 M
12 CHANNEL COMPACT INTEGRA
MONO PLUG
POWER
STATUS
INSERT ALL THE WAY IN TO
THE "SECOND CLICK"
TIP
POWER
ON
RIN
DIRECT OUT WITH SIGNAL
INTERRUPTION TO MASTER
FOR U
(TIP=
LEFT RIGHT
OPTIONAL USES FOR
120V, 50/60 Hz,
35 WATTS
CLIP
22
10
7
11
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1
U
CHANNEL STRIP FEATURES
ZERO
LEVEL
6
+50
PHANTOM POWER
-15dB +30dB
Through a stereo channel’s stereo LINE IN
TRS inputs, there is 20 dB of attenuation fully
TRIM
Ha! We tricked you! The phantom power
switch is not located in the channel strip sec-
tion at all! It’s way over on the right side of the
mixer (see graphic on previous page). We’re
just mentioning it here since it applies to the
channels; specifically, what type of micro-
phones you have plugged into them.
LOW CUT
100 Hz
down and 20 dB of gain fully up, with a “
U”
AUX
1
U
(unity gain) mark at 12:00 (knob halfway up).
Having 20 dB of line-level attenuation can
be very handy when you are injecting a signal
that is very hot, when you want to add a lot of
EQ boost, or both. Without this “virtual pad,” it
would be very difficult to control the signal and
might lead to channel clipping.
O O +15
U
2
Push in this switch to provide phantom
O O +15
power to the XLR MIC
input jacks. All of the
PRE FADER
U
XLR mic inputs are capable of providing phan-
tom power. Phantom power is required to
operate most condenser microphones (some
condenser microphones are battery-powered).
The CFX Series provide +48VDC phantom pow-
ering on pins 2 and 3 of the XLR connectors.
If you have dynamic, ribbon, or tube mics
that do not require phantom power, leave the
PHANTOM POWER switch out. If you are us-
ing both condenser and dynamic mics, don’t
worry. Phantom power will not hurt most dy-
namic mics. Check the microphone’s user
manual if you’re not sure.
E1FX
ZERO LEVEL
(EXT)
This handy LED, which (we hope) you al-
ready read about in “QUICK START,” is triggered
to glow when it receives an audio signal at or
above 0 dBu.
O O +15
U
E2FX
(INT)
O O +15
U
If the LED is glowing, as opposed to flicker-
EQ
ing, turn the TRIM
down. If the LED is
HI
12k
doing almost nothing, turn the TRIM up.
For a more accurate method of setting trim
-15 +15
U
levels, please see RUDE SOLO
(page 15),
where a soloed signal will appear on the
MID
mixer’s meters
.
-15 +15
600
Caution: Turn all output
LOW CUT
levels down before operat-
ing this switch to avoid the
possibility of a “pop” in
your speakers.
150
100
1.5k FREQ
8k
The LOW CUT switch, often referred to as a
High Pass Filter (depends on how you look at
it), cuts bass frequencies below 100Hz at a rate
of 18 dB per octave.
We recommend that you use LOW CUT on
every microphone application except kick
drum, bass guitar, or bass-heavy synth patches.
LOW CUT can also help reduce the possibility
of feedback in live situations and it helps to
conserve amplifier power.
U
LOW
80Hz
Connecting an external line-level device to an
XLR input connector with the phantom power
switched on could damage the device. We recom-
-15 +15
PAN
mend using the LINE IN
and STEREO LINE
IN
jacks for connecting line-level signals.
L
R
1
TRIM
ASSIGN
MUTE
If you haven’t already, please read the “SET
THE LEVELS” portion of “QUICK START,” on
page 5.
TRIM adjusts the input sensitivity of the mic
and line inputs connected to the channels,
mono and stereo. This allows signals from the
outside world to be adjusted to optimal internal
operating levels.
AUX
dB
10
1
-
2
4
These knobs tap a portion of each channel
signal and send it out, via the AUX SEND
jacks, to an external device for parallel effects
processing or stage monitoring.
AUX levels are controlled by these AUX knobs
and by the AUX MASTER SEND
5
U
5
3
-
s
. These are
10
If the signal originates through a mono
more than mere effects and monitor sends:
they can be used to generate separate mixes
for recording or “mix-minuses” for broadcast.
Each AUX knob’s level ranges from off
through unity (the center detent position) on
up to 15 dB of extra gain (fully clockwise).
The line-level stereo channels’ AUX knobs
control a mono sum of the channel’s stereo sig-
nals. For instance, on the CFX•20, channel 17
(L) and 18 (R) mix together to feed that
channel’s AUX send knobs.
20
30
channel’s MIC
XLR jack, there will be 6 dB
of gain with the knob fully down, ramping to 50
dB of gain fully up.
40
50
60
SOLO
PFL
Through a mono channel’s LINE IN
input, there is 15 dB of attenuation fully down
and 30 dB of gain fully up, with a “ ” (unity
TRS
O
U
gain) mark at 12:00 (knob halfway up).
Mono Channel
12
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PRE FADER
80Hz and below. “Peaking” means that only a
selected “hill” of frequencies surrounding a
center “hilltop” frequency is affected by the
EQ control.
The aux send rule of thumb: For parallel
effects processing, use aux sends in post-fader
mode. For stage monitors, use pre-fader mode
(see diagram below).
Everything in moderation (including mod-
eration): with EQ, although you can bring
With this switch disengaged (up), AUX 1
+15
a sound to life, you can also screw things
up. If you max the EQs on every channel,
you’ll get mix mush, not to mention driving
your mix levels near or beyond clipping. So
and receive signals in post-fader mode: post-
2
+10
low cut, post-insert, post-EQ, post-mute, and
POST-fader. Any changes made to the channel
controls will affect the AUX signal.
With this switch engaged (down), AUX 1 and
receive signals in pre-fader mode: post-low cut,
+5
0
–5
equalize subtly; use the left sides of the
–10
knobs (cut) as well as the right (boost).
2
–15
20Hz
100Hz
1kHz
10kHz 20kHz
post-insert, post-EQ, post-mute, and PRE-fader.
Any changes made to the channel controls,
EXCEPT the fader, will affect the AUX signal.
In pre-fader mode, you can take the
drummer’s vocals out of the main mix by turn-
ing his fader down, but since he still hears
himself in the monitors, he’s happy.
HI EQ
Hi EQ
This control provides up to 15 dB of
boost or cut at 12kHz and above, and it is
also flat at the detent. Use it to add sizzle
to cymbals or an overall sense of transpar-
ency or edge to keyboards, vocals, guitar,
and bacon frying. Turn it down a little to
+15
+10
+5
0
–5
EFX 1 (EXT)
EFX 1, designed for feeding the inputs of
parallel effects devices, behaves exactly like an
reduce sibilance or hide tape hiss.
–10
–15
MID EQ
20Hz
100Hz
1kHz
10kHz 20kHz
Mid EQ
Short for “midrange,” this knob provides 15
dB of boost or cut, also flat at the center detent.
Midrange EQ is often considered the most
dynamic, because the frequencies that
AUX
send, but it’s always in post-fader
mode: Any changes made to the channel controls
will affect the EFX signal. The PRE FADER
switch has no effect on the EFX sends.
+15
+10
define any particular sound are almost
+5
EFX 2 (INT)
EFX 2 is identical to EFX 1 with one big dif-
ference: In addition to feeding the EFX SEND
jacks, it also feeds the inputs to the EMAC
always found in this range. You can create
as many interesting and useful EQ changes
by turning this knob down as well as up.
The mono channels employ a semi-
parametric mid-sweep EQ. In addition to being
able to set the amount of boost, you can “aim”
that boost at a specific frequency; anywhere
from 100Hz to 8kHz.
0
–5
–10
–15
20Hz
100Hz
1kHz
10kHz 20kHz
Low EQ
EFFECTS PROCESSOR
. If you’re using
EMAC and just one outboard processor, patch
the outboard processor via EFX RETURN 1. You
can use EMAC and an outboard device via EFX
The stereo channels employ a 2-stage fixed-
EQ
2
; just remember that the sends (EFX 2 (INT)
U
frequency MID EQ HI-MID is centered at 3kHz;
.
,
EFX 2 SEND ) and returns (TO MAIN
) control two devices. The PRE FADER
switch has no effect on the EFX sends;
HI
12k
LOW-MID is centered at 400Hz.
MIX
-15 +15
U
LOW EQ
they’re always post-fader.
HI
MID
3k
This control provides up to 15 dB of boost or
cut at 80Hz and below. The circuit is flat (no
boost or cut) at the center detent position.
This frequency represents the punch in bass
drums, bass guitar, fat synth patches, and high-
testosterone male singers.
When adding boost to the channel’s low EQ,
simultaneously engaging the LOW CUT
switch can create an audible low frequency boost
without boosting stage rumble, mic handling
clunks, and breath pops.
-15 +15
U
EQ
The CFX Mixer has low shelving, mid peak-
ing, and high shelving EQ. “Shelving” means that
the circuitry boosts or cuts all frequencies past
the specified frequency. For example, boosting
the LOW EQ knob boosts bass frequencies at
LOW
MID
400Hz
-15 +15
U
LOW
80Hz
-15 +15
GAIN
(FADER)
PAN
PAN
1-2
INPUT
TRIM
LO CUT
INSERT
EQ
MUTE
3-4
L
R
"POST"
SIGNAL
17-18
PRE-POST
AUX 1
ASSIGN
TO AUX 1 MASTER SEND LEVEL
"PRE" SIGNAL
MUTE
AUX 2
EFX 1
TO AUX 2 MASTER SEND LEVEL
TO EFX 1 MASTER SEND LEVEL
Stereo Channel
“Pre vs. Post” Auxiliary
Signal Flow Diagram
EFX 2
TO EFX 2 MASTER SEND LEVEL
13
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PAN
nal. Subtle adjustment of the channels’ fader
positions is the key to a finely-tuned mix.
PAN adjusts the amount of channel signal
Typically (providing the TRIM
correctly) the fader position will be positioned
somewhere between 0 dB (“ ”) and –30 dB.
knob is set
sent, left versus right, to the SUB OUT
(and ultimately the MAIN OUT via the
switches). On mono chan-
s
s
U
SUB ASSIGN
If you have a fader set all the way up, adding
10 dB of gain, that’s usually a sign that your TRIM
knob is set too low. Conversely, if the fader is
set way down, your TRIM may be set too high.
nels, the knob places the signal somewhere
between hard left and hard right. On stereo
channels, it works like the balance control on
your home stereo, by attenuating one side or
the other.
With the PAN knob hard left, the signal will
feed SUB 1 and SUB 3 (assuming the channel’s
“U” LIKE UNITY GAIN
Mackie mixers have a “
symbol on almost every level
control. This “ ” stands for
U”
ASSIGN
switches are engaged).
U
With the PAN knob hard right, the signal
will feed SUB 2 and SUB 4 (assuming the
channel’s ASSIGN
With the PAN knob set somewhere in be-
tween, the signal will be shared across both
sides of the mix.
“unity gain,” meaning no
change in signal level. Once
you have adjusted the input signal to line-level,
you can set every control at “U” and your sig-
nals will travel through the mixer at optimal
levels. What’s more, all the labels on our level
controls are measured in decibels (dB), so
you’ll know what you’re doing level-wise if you
choose to change a control’s settings.
switches are engaged).
MUTE
When you engage a channel’s mute switch,
its signal disappears from these outputs: MAIN
EQ
U
HI
12k
OUT
,
MAIN INSERT
,
SUB OUT 1-4
,
SOLO PFL
-15 +15
U
AUX SEND 1 & 2
,
EFX SEND 1 & 2
Engaging a channel’s SOLO switch causes
this dramatic turn of events: The PHONES
and Meters , which ordinarily receive the
main mix signals, instead receive the SOLO
PFL signal. PFL, being a mono signal, is sent to
both sides of the PHONES outputs and to the
LEFT meter. Additionally, the RUDE SOLO
LED flashes obnoxiously to remind you that
“you’re in solo.”
(including the send to the EMAC EFFECTS
). The only thing it doesn’t
mute is the channel’s SOLO PFL switch, so
you can audition channels, via headphones,
without sending them to the main mix.
MID
PROCESSOR
-15 +15
600
150
100
1.5k FREQ
8k
U
ASSIGN
LOW
80Hz
Used in conjunction with the PAN
knob,
-15 +15
ASSIGN determines the final destination of a
channel’s signal. Engaging ASSIGN 1-2, for in-
stance, sends that channel’s signal to the SUB
The SOLO PFL signal is tapped before the
PAN
channel’s MUTE
does, however, follow TRIM
and EQ settings, making it the perfect tool
for quick inspections of individual or multiple
channels. The channel’s PAN
and Fader settings have no effect on the
and Fader
controls. It
,
LOW CUT
,
1
and
switches, the MAIN MIX Fader
Typically, ASSIGN 1-2 will be engaged on all
channels destined for the main mix. By config-
uring SUB 1 and to feed the main mix, the
2
Faders
and, via their SUB ASSIGN
L
R
.
1
ASSIG
MUTE
,
MUTE
dB
10
2
1
-
2
4
SOLO signal. See RUDE SOLO
for more
channel ASSIGN 1-2 switches become the
equivalent of being “Main Mix” switches.
Some channels can use ASSIGN 3-4 in-
stead; creating a submix for a set of channels
(all the drum channels, for instance). Then, by
information.
5
U
5
3
-
WARNING: Pre-fader
SOLO taps the channel
signal before the fader
If you have a channel’s
.
10
configuring SUB 3 and
mix, you can “ride” the SUB 3 and
independently of the rest of the mix.
4
to also feed the main
fader set well below “
U”
4
Faders
0
30
(unity gain), SOLO won’t know that and will
send a unity gain signal to the PHONES
output. That may result in a startling level
boost in your headphones.
SUB Faders
,
SUB ASSIGN
, and
40
50
60
SOLO
PFL
MAIN MIX Fader
will explain this further.
O
FADER
Although the most self-explanatory item on
a mixer, we’ll explain it anyway: The fader is
the master level control for the channel’s sig-
14
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MASTER SECTION FEATURES
We hope you’ve understood, if not memo-
rized, the CHANNEL STRIP FEATURES you
just read. If you’re still confused, please look
A “+4” mixer, with a +4 dBu signal pouring
out the back, will actually display 0 dB on its
meters. A “–10” mixer, with a –10 dBV signal
them over again before you tackle this section. trickling out, will also display 0 dB. So ... when
Don’t worry, it’s easy to swallow as long as you
take it a bite at a time.
is 0 dB actually 0 dB? Right now!
At the risk of creating another standard,
Mackie’s compact mixers address the need of
both crowds by calling things as they are: 0 dBu
(0.775V) at the output shows as 0 dB VU on
the meters. What could be easier? (By the way,
the most wonderful thing about standards is
that there are so many to choose from.)
MAIN MIX FADER
As the name implies, this stereo fader con-
trols the levels of signals sent to the main
outputs: XLR and TRS MAIN OUT . The
TAPE OUTPUT
RCA jacks also receive the
main mix, but before the MAIN MIX Fader.
Signals feeding the MAIN MIX Fader, after
passing through the STEREO GRAPHIC EQ
RUDE SOLO
This infamous flashing LED (Light Emitting
Diode) serves two purposes —- to remind you
that at least one SOLO PFL
gaged, and to let you know that you’re mixing
on a Mackie.
Engaging a SOLO PFL
these features: PHONES
PHANTOM POWER
48v
,
include: SUB ASSIGN
STEREO EFX RETURN 1 and
the EMAC EFFECTS PROCESSOR
TAPE INPUT
and EFX RETURN
,
MAIN INSERT
2
,
(including
), and
switch is en-
POWER
STATUS
. All assigned SUB Faders
LEFT RIGHT
s
that are not turned
switch affects
and Meters
CLIP
22
10
7
fully down will appear in the MAIN MIX
.
.
The fader, set fully up, provides 10 dB of gain. No other outputs are affected in any way.
A “
U
” unity gain point is just below that. When
Although the “SET THE LEVELS” section of
“QUICK START” (page 5) will get your level-
4
set fully down, the main mix is effectively
2
muted. This is the fader to pull down at the end setting tasks accomplished, using the meters
0
of the song when you want The Great Fade-Out.
in PFL SOLO mode lets you really tune in.
Instead of one flickering LED, you can make
use of the 12-segment VU display in the
meters. How? Just engage a SOLO PFL
switch and watch the meters.
2
4
METERS
ZERO
LEVEL
SET
7
The CFX Mixer’s peak metering system is
made up of two columns of twelve LEDs each,
with thresholds ranging from –30 dB up to
10
20
30
WARNING: SOLO is pre-
fader and taps the channel
signal before the fader
If you have a channel’s
0dB
=
0dBu
“CLIP” (+22 dBu at the TRS MAIN OUT
,
RUDE
SOLO
+28 dBu at the XLR MAIN OUT). The meters
display the main mix, post MAIN MIX Fader
.
STEREO
, unless a SOLO PFL
When a SOLO PFL
the meters will instead display the solo infor-
mation, at unity gain (pre channel fader ).
Why, you ask? The meters, being a tool for the
engineer, must display what the engineer is lis-
switch is engaged.
switch is engaged,
fader set well below “U”
MAIN MIX
(unity gain), SOLO won’t know that and will
send a unity gain signal to the PHONES
output. That may result in a startling level
boost in your headphones.
dB
10
5
U
5
STEREO GRAPHIC EQ
This equalizer, used to shape the frequency
tening to via the PHONES
output.
You can get a good mix with the meter’s
peaks flashing anywhere between –20 and +10 spectrum of the main mix, is the last thing in
10
dB. Most amplifiers clip at about +10 dB, and
some recorders aren’t so forgiving either. For
best real-world results, try to keep your peaks
between “0” and “+7.”
the chain prior to the MAIN MIX Fader
and MAIN OUT XLR and TRS jacks.
Although there is no actual bypass switch
for the STEREO GRAPHIC EQ, by setting all
the sliders to zero (center) you’ll effectively
remove it from the signal path.
20
30
40
50
You may already be familiar
with “+4” (+4 dBu=1.23V)
60
O
and “–10” (–10 dBV=0.32V)
How to find and reduce feedback:
operating levels. Basically,
1. Set the GRAPHIC EQ sliders to zero (center).
what determines the operat-
2. Set the TRIM
levels, using the ZERO
ing level is the relative 0 dB VU (or 0VU)
chosen for the meters.
LEVEL
or SOLO PFL
.
15
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jacks and engage the BREAK SWITCH. In-
stantly, the entire main mix is switched off and
the intermission entertainment is switched on.
Even if you just want silence during the
breaks, this switch can act as a “Master Mute”
switch, simply by plugging nothing into TAPE
15
10
15
10
5
0
5
0
INPUT
.
5
5
10
15
10
15
PHONES LEVEL
63
125
250
500
1K
2K
4K
8K
16K
After the MAIN MIX Fader , the mix is
sent through this knob, allowing you to set
headphone levels as desired without disturbing
the main mix level.
STEREO GRAPHIC EQ
CFX12 MIXER
12 CHANNEL COMPACT INTEGRATED LIVE SOUND MIXER
When a channel’s SOLO PFL
is engaged,
the main mix will be replaced by the solo sig-
nal, allowing the engineer to audition channels
without disturbing the main mix.
3. Slowly turn up the MAIN MIX Fader
until feedback just begins to occur. BE
CAREFUL! Feedback can occur quickly
and become very LOUD, very fast.
4. Cut the appropriate slider until feedback
stops.
U
The stereo PHONES jack
can drive any
EFX 1 R+E2T0URN
U
O O
standard headphones to very loud levels.
Walkperson-type phones can also be used with
an appropriate adapter.
Suggestions for better sound:
For better vocal sound, set the 125, 250,
and 16K sliders to +5.
Note: Make sure the singer is within 3 to 6
inches of the microphone. No amount of
EQ can save a wandering minstrel.
For more presence, set the 4K and 8K
sliders to +5.
Note: Please see the “Safety Instructions”
on page 2 for information on hearing protection.
O O +20
•
TAPE LEVEL
UTILITY OUT LEVEL
After the MAIN MIX Fader , the mix is
sent through this knob, allowing you to set the
BREAK SWITCH
(MUTES ALL CHANNELS)
ZE
LEV
SE
levels at the UTILITY OUT
as desired with-
•
•
•
out disturbing the main mix level.
O O
MAX
PHONES LEVEL
U
To warm up the overall sound, set the 2K
slider to –5.
REMEMBER, LESS IS BETTER.
SUB FADERS
The typical exit for channel signals is through
one or more sub mixes. The sub mix signal is
first controlled by this fader, which provides 10
O O +10
UTILITY OUT LEVEL
TAPE LEVEL
You can adjust the incoming level of your in-
termission entertainment, independent of the
main mix level controls, via this feature. Here’s
how: Patch the stereo device into the TAPE IN-
dB of gain fully up, unity gain at the “
and is effectively muted fully down.
From here, the signal goes to two very differ-
ent locations: SUB OUT sends the sub mix
directly out of the mixer via its TRS jacks; and
sends it to the MAIN MIX
U” mark,
SUB
1
ASSIGN
PUT
. Put the device in play. Engage the
and set the TAPE LEVEL
knob as desired. Assuming the MAIN MIX
Fader is set, you should hear the device.
dB
10
d
SUB ASSIGN
LEFT
BREAK SWITCH
Fader
.
5
U
5
RIGHT
LEFT/RIGHT SUB ASSIGN
As discussed in ASSIGN , the only way to
get channel outputs to the main mix is via the
sub mixes, and this switch is the key.
BREAK SWITCH
No, when we say BREAK SWITCH, we’re not
asking you to break the switch, we’re offering
you a very handy feature. When it’s time for the
talent to take a break, the engineer usually
wants to stretch his legs. But walking away
from a live mixer in a crowded club can be
somewhat unnerving — what if some goon
starts dinking around with the faders?
10
Continuing the assumption made in ASSIGN
, Subs 1 and 2 are the left-right stereo path
20
30
from the channels to SUB Faders
1
and
2,
40
50
60
with SUB 1 carrying the left signal and SUB 2
carrying the right. Engage SUB 1 ASSIGN LEFT
and SUB 2 ASSIGN RIGHT, and you’re done.
Take a look at the block diagram on page 22 —
it’ll explain this and more, but in hieroglyphics.
O
No problem. Just plug in your intermission
entertainment device to the TAPE INPUT
16
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AUX MASTER SEND
Aux send signals are derived by each
ING/DEPTH
an effect you like, jot down the parameters, then
goof around some more.
To mute these effects, engage BYPASS
(or your foot switch if connected to EFX FOOT
and WIDE . When you find
channel’s AUX
knob, mixed together, then
sent through this AUX MASTER SEND knob.
Turned fully up, it provides 15 dB of additional
SWITCH
). To send these effects to the
stage monitor cues, turn up the EFFECTS TO
knobs.
gain, the center “U” mark is unity gain, and
fully down is off.
MONITOR
Typically, when the talent (or lack thereof)
wants a louder monitor mix, this is the knob to
crank up — watch out for feedback!
FOR THE CURIOUS:
EMAC™ stands for Extended Multiply and
Accumulate, which is a proprietary 32-bit digital
stereo processor developed by our Digital Engi-
neering Group. It provides 16 preset digital
effects algorithms for you to select. In addition
to the presets, there are two parameter con-
EFX 1 MASTER SEND
Effects send signals are derived by each
channel’s EFX 1 (EXT)
knob, mixed to-
gether, then sent through this EFX 1 MASTER
SEND knob. Turned fully up, it provides 15 dB
of additional gain, the center “
gain, and fully down is off.
trols (
) you can adjust to change the
sound and make it unique for your particular
application.
U” mark is unity
Being that this controls only post-fader
sends destined for outboard effects devices,
EFX 2 SEND
This controls the signal level being sent to
the input of the EMAC module (and to the EFX
you’ll typically set this knob near the “
U” mark
MASTER SEND
and then leave it alone.
SEND 2
jack). Use the EFX 2 (INT)
AUX
U
EFX 1 RETURN
controls on the individual channels to adjust
the amount of each channel’s signal you want
to go to the EMAC. Leave EFX 2 SEND set at
the center “U” position. If you find that you’re
not getting enough of the effect in the main
1
Stereo signals come through the EFX 1
RETURN and continue on to the MAIN MIX
Fader . They contain the effects’ “wet”
signals to be mixed together with the channels’
“dry” original signals. Turned fully up, it pro-
vides 15 dB of additional gain, the center “
mark is unity gain, and fully down is off.
Being that this controls only the return sig-
nals of external effects, with their levels
already determined by the channels’ EFX 1
O O +15
U
2
O O +15
U
mix, make sure that the TO MAIN MIX
control is turned up at least to unity (the cen-
ter detent position). It’s okay to turn up the
EFX 2 SEND some more if you need to. Just
EFX
U”
1
(EXT)
O O +15
make sure the ZERO LEVEL
LED never
lights more than occasionally. Read on to find
out why.
(EXT)
knob, you’ll typically set this knob
near the “U” mark and then leave it alone.
U
TO MAIN MIX
EMAC EFFECTS
PROCESSOR
FOR THE IMPATIENT:
Set EFX 2 SEND
and TO MAIN MIX
Stereo signals (from
STEREO EFX RETURN 2
CUSTOM 32-BIT PRECISION
DIGITAL STEREO EFFECTS PROCESSOR
EFX 1 R+E2T0URN
U
O O
CLIP
and EMAC EFFECTS
EFX 2 (INT) RETURN MASTERS
PROCESSOR
) come
U
U
U
U
through this TO MAIN
MIX knob and continue
on to the MAIN MIX
Fader . They contain
the effects’ “wet” signals
and are mixed together
with the channels’ “dry”
original signals. Turned
fully up, it provides 15 dB
of additional gain, the
center “U” mark is unity
gain, and fully down is off.
Being that this con-
trols only the return
signals of external and
at the center “U” mark.
O O +20
TAPE LEVEL
O O +15
O +15
O O +15
O O +15
Assuming you have your
basic mix up and run-
ning, turn up the EFX 2
EFX
SEND
2
AIN MIX
AUX
1
AUX
2
EFFECTS TO MONITOR
REVERSE
GATED
CATHEDRAL
LG. HALL
MD. HALL
LG. PLATE
MD. PLATE
SM. ROOM
NORMAL
DELAY 1
DELAY 2
DELAY 3
DELAY 4
CHORUS
FLANGE
PHASER
SPRING
BREAK SWITCH
(MUTES ALL CHANNELS)
(INT)
, per channel.
ZE
LEV
SE
This feeds in individual
amounts of channel sig-
nals to the EMAC inputs
— you should be hearing
the effects as you do this.
Next, goof around
O O
MAX
PHONES LEVEL
U
NORMAL
EFX
O O +10
UTILITY OUT LEVEL
with the various param-
eters: Preset Select
WIDE
BYPASS
10
TIME
RATE
0
1
REVERBS
DELAYS
CHORUS/FLANGE/PHASER
,
DAMPING
DEPTH
TIME/RATE
,
DAMP-
17
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EMAC effects, with their levels already deter-
A very dramatic effect that works well with wind
mined by the channels’ EFX 2 (EXT) knob, you’ll instruments such as flute, slow finger picking on
typically set this knob near the “
then leave it alone.
U
” mark and
acoustic guitar, and quiet vocal group harmony
and choirs. Also works well with keyboards and
drums using short decay. Decay range is adjust-
able from 2 seconds to 10 seconds. Pre-delay set
at 75ms.
EFFECTS TO MONITOR
This works just like the channel AUX
knobs, but here, the source signal is the EFX 2
LG. HALL: Dense, smooth reverb with long
RETURN and the EMAC output. Typically, this tail, long pre-delay, and some early reflections.
knob is used to add effects to the stage monitors.
Tails are warm with more apparent high end.
Works well with vocals and electric and acoustic
guitar. Decay range is adjustable from 1 second
to 5 seconds. Pre-delay set at 75ms.
Turned fully up, it provides 15 dB of addi-
tional gain, the center “U” mark is unity gain,
and fully down is off.
MD. HALL: Dense, smooth reverb with nor-
mal tail, normal pre-delay, and increased early
reflections. Tails are warm with more apparent
high end. Works well with vocals and electric
and acoustic guitar. Decay range is adjustable
from 750ms to 2.5 seconds. Pre-delay set at 65ms.
LG. PLATE: Good early reflections and no
pre-delay. Tails are normal and warm with
strong high end for increased presence. Perfect
for vocals and snare. Decay range is adjustable
from 1 second to 5 seconds. No pre-delay.
MD. PLATE: Good early reflections and no
pre-delay. Tails are short and warm with strong
high end for increased presence. Perfect for
tight vocals and snare. Decay range is adjust-
able from 750ms to 2.5 seconds. No pre-delay.
SM. ROOM: Reverb featuring very fast and
scattered early reflections with a short pre-delay.
Tails are very short and warm with normal high-
end imitating absorbent wall materials and
audience. Good for tight vocal effects. Decay
range is adjustable from 250ms to 1 second.
Pre-delay set at 30ms.
PRESET SELECT
Rotate this detented switch to select the
preset effect you want to use.
Preset Effects Descriptions
Reverbs
The reverbs are designed to provide a wide
variety of reverb sounds for vocal and instru-
ment applications. In the following description,
tail refers to the reflections that follow the initial
sound event, also referred to as decay range.
Pre-delay is the amount of time between the
initial sound event and the first reflection.
TIME/RATE
controls the length of the
tail, with the shortest tail at the position and
the longest tail at 10
controls the damping, with the darkest tone at
and the brightest tone at 10. The WIDE
0
.
DAMPING/DEPTH
0
switch is very effective at increasing the stereo
image of the reverb effect.
REVERSE: Standard reverse reverb, simulat-
ing a tail-first effect
increasing to the original
SPRING: Mimics the
vintage 60’s-style wet
CUSTOM 32-BIT PRECISION
DIGITAL STEREO EFFECTS PROCESSOR
note. Decay range is ad-
justable from 35ms to
515ms. No pre-delay.
GATED: Standard
gated reverb, where the
reverb tail is cut off
sharply after the preset
decay length. Decay
range is adjustable from
35ms to 515ms. No pre-
delay.
CATHEDRAL: Dense,
smooth reverb with very
long tail, long pre-delay,
and late reflections. Tails
are very warm with some
additional high-end
spring reverb effect. Tails
are normal with strong
high end and a slight wa-
ver imitating the slow
flutter of the mechanical
spring system. Very good
with acoustic guitar.
Decay range is adjust-
able from 1 second to 5
seconds. No pre-delay.
CLIP
EFX 2 (INT) RETURN MASTERS
U
U
U
U
O O +15
EFX
SEND
O O +15
O O +15
O O +15
2
TO MAIN MIX
AUX
1
AUX
2
EFFECTS TO MONITOR
REVERSE
GATED
CATHEDRAL
LG. HALL
MD. HALL
LG. PLATE
MD. PLATE
SM. ROOM
NORMAL
DELAY 1
DELAY 2
DELAY 3
DELAY 4
CHORUS
FLANGE
PHASER
SPRING
Delays
There are four delays
available with one, two,
three, and four repeats.
NORMAL
EFX
TIME/RATE
the time between repeats,
with the fastest repeats
controls
WIDE
BYPASS
10
TIME
RATE
0
1
REVERBS
DELAYS
CHORUS/FLANGE/PHASER
DAMPING
DEPTH
reflections imitating the
stone walls of a cathedral.
at the position and the
0
18
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slowest repeats at 10
.
DAMPING/DEPTH
able from 0.5Hz to 20Hz. Depth is adjustable
controls the damping, with the darkest tone at from 0% to 100%.
0
and the brightest tone at 10. Since the delay
effect is not stereo, it is not affected by the
switch.
PHASER: This effect is perfect for enhanc-
ing strummed acoustic guitar or electric guitar
power chords. The PHASER effectively dupli-
cates the popular 70’s phase shift effect used
for guitar. Rate is adjustable from 0.5Hz to
WIDE
DELAY 1: One repeat. Works best for
slapback delay used in country and swing gui-
tar, and for rockabilly and some country vocals. 35Hz. Depth is adjustable from 50% to 100%.
Delay range is adjustable from 5ms to 524ms.
TIME/RATE
DELAY 2: Two repeats. Provides a fuller, more
dramatic effect for rock and gospel vocals,
acoustic guitar, and wind instruments such as
flute. Especially effective for some finger-picking
styles. Delay range is adjustable from 5ms to
524ms.
If you have a reverb effect selected, this
control adjusts how long the reverberation
lasts, with being a short reverb time and 10
0
being the longest.
If you have a delay effect selected, this adjusts
DELAY 3: Three repeats. An excellent delay the amount of time between the original signal
for slow, bluesy vocals and melodic flute music. and the delayed signal, with being a short delay
0
This delay usually works best when the chan-
nel EFX send is set at less than halfway. Delay
range is adjustable from 5ms to 524ms.
DELAY 4: Four repeats. This is for very dra-
matic delay effects, particularly for enhancing
long vocal notes and dramatic instrumental
note-chopping effects. Be sure to set the chan-
nel EFX send at about halfway. Delay range is
adjustable from 5ms to 524ms.
time and 10 being the longest delay time.
If you have a chorus, flange, or phaser effect
selected, this control adjusts the rate or speed
of the modulation of the effect.
DAMPING/DEPTH
If you have a reverb or delay effect selected,
this control adjusts how fast the higher fre-
quencies roll off in the reverberation or delay,
with 0 having little roll off and 10 having the
most roll off.
Modulation Effects
These include Chorus, Flange, and Phaser,
and are generally used for enhancement of
instrumental music. However, Chorus adds a
dramatic effect to vocals as well. The WIDE
switch is very effective at dramatically
If you have a chorus, flange, or phaser effect
selected, this control adjusts the depth of the
modulation of the effect.
WIDE
increasing the strength and thickness of a
modulation effect. For example, using WIDE on
Chorus mimics a multi-voiced chorus effect.
Depending on the effect selected, this
switch adds more width or depth to the effect.
Note that it doesn’t work with the DELAY and
PHASER effects because they are monophonic.
TIME/RATE
controls the effect Rate,
which is the speed of the sweeping effect. Fully
counter-clockwise produces the slowest sweeps
and fully clockwise produces the fastest.
BYPASS
Pushing in this button causes the adjacent
EFX BYPASS indicator to light and mutes the
effects’ output signal. It affects only the internal
EMAC effects, not any external effects processor
you may have connected to the STEREO EFX
DAMPING/DEPTH
controls the effect
depth, which is the strength of the sweeping
effect. Fully counter-clockwise produces the
lightest sweeping effect and fully clockwise
produces the thickest.
RETURN 2
jack.
CHORUS: Provides a soft, ethereal sweeping
effect. Perfect for enhancement of electric and
acoustic guitar and bass. Also adds a dramatic
effect to vocals, particularly group harmonies
and choirs. The channel’s EFX 2 (INT)
should be set halfway or higher. Rate is adjust-
able from 0.5Hz to 30Hz. Depth is adjustable
from 0% to 100%.
CLIP
This indicates when the EMAC is 6 dB below
clipping. Just like the channels’ ZERO LEVEL
LED, this LED should only light occasion-
ally. If it blinks frequently, you should turn
down EFX 2 SEND
a little.
FLANGE: Creates a strong sweeping effect,
particularly effective on rock electric guitar,
lead and rhythm. The channel’s EFX 2 (INT)
should be set halfway or higher. Rate is adjust-
19
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GENERAL PRECAUTIONS AND CONSIDERATIONS
NEVER bypass the AC
plug’s ground pin. This is
dangerous!
When setting up for a show, oftentimes you
are plugging into an AC power distribution sys-
tem you know nothing about. You may even be
faced with 2-wire outlets that are missing the
third safety ground pin. It’s a good idea to have
a three-wire AC outlet tester in your toolbox so
you can check the outlets yourself to make
sure they are wired correctly. These testers will
tell you if the polarity of the hot and neutral
wires is reversed and if the safety ground is dis-
connected. Don’t use an outlet if it is wired
improperly! This is to protect yourself as well
as your equipment.
AC Power Distribution
The majority of AC outlets encountered in
homes and clubs (in the U.S.) are served by a
240VAC center-tapped service entrance trans-
former. This provides two phases of AC power
on either side of the center tap, at 120V each.
If lighting is used in a show, it is preferable
to power the lights from one leg of the service,
If you find that you must plug into a two-
and power the audio equipment from the other wire outlet, you will need to use a two-wire to
leg. This will help minimize noise from the
lights coupling into the audio (particularly if
SCRs, or light-dimmer switches, are used).
three-wire adapter (cheater plug). These come
with a metal tab that you put underneath the
center screw that holds the AC outlet faceplate
In order to minimize ground loops, the safety in place. This center screw must be grounded.
grounds for all the outlets should be connected
to a common (“star”) grounding point, and the
distance between the outlets and the common
grounding point should be as short as possible.
You can check it by connecting the adapter to
the outlet and then plugging in your handy-
dandy AC outlet tester.
APPENDIX A: Service Info
Warranty Service
Bad Output
Details concerning Warranty Service are
spelled out page 23.
•
Are the SUB ASSIGN
correctly?
switches set
If you think your CFX Mixer has a problem,
please do everything you can to confirm it be-
fore calling for service. Doing so might save you
from the deprivation of your mixer and the as-
sociated suffering.
Of all Mackie products returned for service
(which is hardly any at all), roughly 50% are
coded “CND” — Could Not Duplicate, which
usually means the problem lay somewhere
other than the mixer. These may sound obvious
to you, but there’s some things you can check.
Read on.
•
•
Are the MAIN MIX Fader
and SUB
Faders
turned up?
If it’s one of the MAIN OUT
s
, try
unplugging all the others. For example, if
it’s a TRS MAIN OUT, unplug the associ-
ated XLR outputs. If the problem goes
away, it’s not the mixer.
If it’s a stereo pair, try switching them
around. For example, if a left output is
presumed dead, switch the left and right
cords, at the mixer end. If the left speaker
is still dead, it’s not the mixer.
•
Troubleshooting
Bad Channel
Noise
Turn the channel Faders
•
,
EFX 1
RETURN
and EFX 2 SEND
down,
•
•
•
Is the ASSIGN
Is the channel Fader
On mono channels, try unplugging any
switch set correctly?
turned up?
one by one. If the sound disappears, it’s
either that channel or whatever is plugged
into it, so unplug whatever that is. If the
noise disappears, it’s from your whatever.
INSERT devices.
•
Try the same source signal in another
channel, set up exactly like the suspect
channel.
Power
Our favorite question: Is the POWER
switch on?
•
20
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Repair
5. Include a legible note stating your name,
shipping address (no P.O. boxes), daytime
phone number, RA number, and a detailed
description of the problem, including how
we can duplicate it.
Service for the CFX Series mixers is avail-
able only at our factory, located in sunny
Woodinville, Washington. Service for Mackie
mixers living outside the United States can be
obtained through local dealers or distributors.
If your mixer needs service, follow these in-
structions:
6. Write the RA number in BIG PRINT on
top of the box.
7. Ship the mixer to us. We suggest insurance
for all forms of cartage. Ship to this
address:
1. Review the preceding troubleshooting
suggestions. Please.
2. Call Tech Support at 1-800-258-6883, 8am
to 5pm PST, to explain the problem and
request an RA (Return Authorization)
number. Have your mixer’s serial number
ready. You must have an RA number before
you can obtain service at the factory.
Mackie Designs
SERVICE DEPARTMENT
16140 Wood-Red Rd. NE, Ste. 5
Woodinville, WA 98072
8. We’ll try to fix the mixer within five
business days. Ask Tech Support for
current turn-around times when you call
for your RA number. We normally send
everything back prepaid using UPS OR-
ANGE (three-day air). However, if you rush
your mixer to us by Next Day Air, we’ll treat
it in kind by shipping it back to you the
same way in which it was received. This
paragraph does not necessarily apply to
non-warranty service.
3. Keep this owner’s manual. We don’t need it
to repair the mixer.
4. Pack the mixer in its original package,
including endcaps and box. This is very
important. When you call for the RA
number, please let Tech Support know if
you need new packaging. Mackie is not
responsible for any damage that occurs
due to non-factory packaging.
APPENDIX B: Technical Info
Input Level Trim Control Range
+6 to –50 dB
Specifications
CFX•12, CFX•16, CFX•20
Phantom Power
+48V DC
Mixer Section
Frequency Response
Mic Input to any Output (Trim at 0 dB):
+0, –1 dB, 32Hz to 20kHz
Equalization
Low Cut:
Mono Channel EQ:
100Hz, –18 dB/octave
High
Mid
Low
15 dB @ 12kHz
15 dB @ 100Hz to 8kHz
15 dB @ 80Hz
Distortion
THD and SMPTE IMD; 20Hz to 20kHz
Mic Input to Main Output:
< 0.05% @ +4 dBu output
Stereo Channel EQ:
High
15 dB @ 12kHz
15 dB @ 3kHz
15 dB @ 400Hz
15 dB @ 80Hz
High Mid
Low Mid
Low
Noise
20Hz to 20kHz BW (150Ω source impedance)
Equivalent Input Noise (EIN):
–127 dBu
Residual Output Noise:
Main, Monitor, & Effects outputs
Channel & Master levels off
–95 dBu
Graphic EQ (9 bands):
Q = 1.414, ISO octave centers
15 dB @ 63, 125, 250, 500, 1k, 2k, 4k, 8k, 16k Hz
Mixer Rated Output
Main, Sub, Aux, & Efx:
+4 dBu
Maximum Rated Output:
+20 dBu
Common Mode Rejection Ratio (CMRR)
60 dB @ 1kHz, Trim @ 0 dB
Maximum Input Levels
Mic Input:
–28 dBu, Trim @ +50 dB
+18 dBu, Trim @ +6 dB
–8 dBu, Trim @ +30 dB
+38 dBu, Trim @ –15 dB
Crosstalk
Adjacent Inputs or Input to Output:
–90 dB @ 1kHz
Line Input:
Fader Off
Insert Input, Stereo Line Input, Tape Input, and
Effects Return: +20 dBu
–90 dB @ 1kHz
Mute Switch and Break Switch Mute
–80 dB @ 1kHz
21
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Maximum Voltage Gain
Input Impedance
Mic Input to
Insert Output:
Tape Output:
Sub Output:
Main Output:
Aux Send:
Line Input to
Insert Output:
Tape Output:
Sub Output:
Main Output:
Aux Send:
Stereo Line Input to
Tape Output:
Sub Output:
Main Output:
Aux Send:
Mic Input:
Line Input:
3kΩ, balanced
50 dB
66 dB
66 dB
76 dB
71 dB
40kΩ, balanced
CFX•12
WEIGHT
17.8 lbs.
(8.1 kg)
Insert Input, Stereo Line Input, Tape Input, and
Effects Returns:
10kΩ, unbalanced
Output Impedance
Main Output, Insert Output, Tape Output, Sub
Output, and Effects Sends: 150Ω
30 dB
46 dB
46 dB
56 dB
51 dB
Digital Effects
Resolution:
Number of Presets:
16-bit, 2-channel
16
CFX•16
WEIGHT
21.0 lbs.
(9.5 kg)
Channel Level Set LED (Sensitivity)
0 dBu (normal operating level)
40 dB
40 dB
50 dB
45 dB
VU Meters
Main L/R
Tape Input to
Main Output:
Effects Return to
Main Output:
5.0"/127mm
12 segments:
Clip, +10, +7, +4, +2, 0, –2, –4, –7, –10, –20, –30
30 dB
30 dB
CFX•20
WEIGHT
24.3 lbs.
(11.0 kg)
Disclaimer
Since we are always striving to make our products
better by incorporating new and improved materi-
als, components, and manufacturing methods, we
reserve the right to change these specifications at
any time without notice.
15.7"/399mm
2.1"/53mm
4.6"/117mm
Block Diagram
CFX Series
SUB
SUB
SUB
SUB
1
OUT
OUT
OUT
OUT
+48 VDC
LEFT
ASSIGN
PHANTOM POWER
RIGHT
SOLO
ASSIGN
INSERT
2
3
4
TRIM
LEVEL
SET
MAIN INSERT
PAN
TAPE OUT
LEFT
LO MID FREQ HI
80 12K
LOW CUT
2
3
MUTE
1-2
1
2
3
BREAK
1
MAIN OUT
LEFT
100 Hz
HPF
63 125 250500 1K 2K 4K 8K 16K
LEFT
ASSIGN
FADER
3-4
MAIN
LEVEL
TAPE IN
LEFT
RIGHT
PRE-P0ST
ASSIGN
AUX
1
SUBWOOFER
OUT
1
MIC/LINE IN
2
AUX
EFX
EFX
2
1
TAPE
MONO CHANNELS
LEVEL
75 Hz
LPF
3
LEFT
ASSIGN
2
TAPE IN
RIGHT
RIGHT
SOLO
ASSIGN
MAIN INSERT
MAIN
LEVEL
2
LO MID MID HI
80 800 3K 12K
1
63 125 2505001K 2K 4K 8K 16K
MAIN OUT
RIGHT
BREAK
LEFT
3
LEFT
ASSIGN
TAPE OUT
RIGHT
1-2
3-4
PAN
MUTE
MAIN
LINE IN
TRIM
STEREO
CHANNELS
LO MID MID HI
80 800 3K 12K
RIGHT
ASSIGN
RIGHT
STEREO EFX
RETURN LEFT
1
PFL
AUX
AUX
EFX
EFX
1
SIGNAL
TO PHONES
PRE/POST
2
EFX RETURN
1
UTILITY OUT LEFT
UTILITY OUT RIGHT
RUDE SOLO
LIGHT
1
STEREO EFX
RETURN RIGHT
1
2
UTILITY
LEVEL
+5
VDC
EFX SEND
2
STEREO EFX
RETURN LEFT
FROM EFX
SOLO
OFF
2
TO MAIN MIX
EFX LEVEL SET
EFX BYPASS
SOLO CONTROL
(ACTIVE LOW)
SOLO
ON
EFX TO MAIN MIX
PFL
+5
VDC
TO LEFT MAIN
L
PHONES
PHONES LEVEL
STEREO EFX
EFX SEND
2
RETURN
RIGHT
2
EFX TO AUX
1
EFX
SELECT
AUX SEND
1
BOTHELL
MONROE
TIME/RATE
PFL
WOODINVILLE
EXIT
SIGNAL
TO LEFT
METER
EFX TO AUX
2
AUX SEND
1
EMAC
DSP
DAMPING/DEPTH
EFX WIDE
TO RIGHT MAIN
AUX SEND
EFX SEND
2
22
10
7
R
4
2
0
2
AUX SEND
EFX SEND
2
4
7
10
20
30
1
EFX
FOOT
SOLO
SWITCH
OFF
EFX BYPASS
1
MACKIE DESIGNS
CFX SERIES
SOLO
ON
SOLO CONTROL
(ACTIVE LOW)
BLOCK DIAGRAM
(#62399CJM/DF)
22
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CFX SERIES LIMITED WARRANTY
Please keep your sales receipt in a safe place.
A. Mackie warrants all materials, workmanship and
proper operation of this CFX Series product for a
period of one year from the original date of
purchase. If you complete the optional question-
naire portion of the Product Registration Card, the
warranty will be extended for an additional two
years, but during the additional two years the labor
for replacing slide potentiometers will be excluded
from warranty coverage and may be billed to you. If
any defects are found in the materials or workman-
ship or if the product fails to function properly
during the applicable warranty period, Mackie, at
its option, will repair or replace the product. This
warranty applies only to equipment sold and
delivered within the U.S. by Mackie or its
authorized dealers.
E. Mackie reserves the right to inspect any products
that may be the subject of any warranty claims
before repair or replacement is carried out. Mackie
may, at their option, require proof of the original
date of purchase in the form of a dated copy of the
original dealer’s invoice or sales receipt. Final
determination of warranty coverage lies solely with
Mackie Designs Inc.
F. Mackie CFX Series products returned to Mackie
and deemed eligible for repair or replacement
under the terms of this warranty will be repaired or
replaced within thirty days of receipt by Mackie at
our rainforest factory complex. Products returned to
Mackie that do not meet the terms of this Warranty
will be repaired and returned C.O.D. with billing
for labor, materials, return freight, and insurance.
Products repaired under warranty at Mackie's
factory will be returned freight prepaid by Mackie
to any location within the boundaries of the USA.
G. This warranty is extended to the original
purchaser and to anyone who may subsequently
purchase this product within the applicable
warranty period.
H. This is your sole warranty. Mackie does not
authorize any third party, including any dealer or
sales representative, to assume any liability on
behalf of Mackie Designs or to make any warranty
for Mackie Designs.
I. THE WARRANTY GIVEN ON THIS PAGE IS THE
SOLE WARRANTY GIVEN BY MACKIE AND IS IN
LIEU OF ALL OTHER WARRANTIES, EXPRESS
AND IMPLIED, INCLUDING THE WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE. THE WARRANTY GIVEN
ON THIS PAGE SHALL BE STRICTLY LIMITED IN
DURATION TO ONE YEAR FROM THE DATE OF
ORIGINAL PURCHASE FROM AN AUTHORIZED
MACKIE DEALER. UPON EXPIRATION OF THE
APPLICABLE WARRANTY PERIOD, MACKIE
SHALL HAVE NO FURTHER WARRANTY OBLIGA-
TION OF ANY KIND. MACKIE SHALL NOT BE
LIABLE FOR ANY INCIDENTAL, SPECIAL, OR
CONSEQUENTIAL DAMAGES THAT MAY RESULT
FROM ANY DEFECT IN THE MACKIE PRODUCT
OR ANY WARRANTY CLAIM. Some states do not
allow exclusion or limitation of incidental, special,
or consequential damages or a limitation on how
long warranties last, so some of the above limita-
tions and exclusions may not apply to you. This
warranty provides specific legal rights and you may
have other rights which vary from state to state.
B. Failure to return the card will not void the 1-year
warranty.
C. Service and repairs of Mackie products are to be
performed only at the factory. Unauthorized service,
repairs, or modification will void this warranty.
D. To obtain factory service:
1. Call Mackie at 800/258-6883, 8AM to 5PM
Monday through Friday (Pacific Time) to get a
Return Authorization (RA). Products returned
without an RA number will be refused.
2. Pack the CFX Series product in its original
shipping carton. If you do not have the carton,
just ask for one when you get your RA number,
and we’ll send a shipping carton out promptly.
More information on packing can be found in
the Service section of the appropriate manual.
Also include a note explaining exactly how to
duplicate the problem, a copy of the sales receipt
with price and date showing, and your return
street address (no P.O. boxes or route numbers,
please!). If we cannot duplicate the problem at
the Mackie Factory or establish the starting date
of your Limited Warranty, we may, at our
option, charge for service time.
3. Ship the product in its original shipping
carton, freight prepaid to:
Mackie Designs Inc.
SERVICE DEPARTMENT
16140 Wood-Red Road NE, Ste. 5
Woodinville, WA, 98072, USA
IMPORTANT: Make sure that the RA number is
plainly written on the shipping carton.
Contributors and Colophon
Typesetting was performed on a Power Macintosh® 8100/
100AV using Adobe® PageMaker® 6.5. Illustrations were cre-
ated using Adobe® Illustrator® 7.0. Fonts used include ITC
Century Light Condensed, Avenir Roman, and Tekton. Sub-
headings were made with Futura Condensed. Font management
provided by Adobe® Type Manager® Deluxe 4.0 and Type
Reunion® Deluxe 2.0.
Manual composed by Jeff Gilbert, the original 10-year
Mackoid (not counting Greg, of course). It was created in just 3
hours, using a mascara pencil applied to cocktail napkins in the
back booth of a diner in Bothell WA. He then borrowed snippets
of text found lying on the floor of Mackie’s Engineering and Ad-
vertising departments and pasted them in, using cat saliva. It
was really quite disgusting, so he turned it all over to Dave
Franzwa, a REAL technical writer, to gussy it up.
Additional input provided by Paul Larson, Tech Support
guru, Rick Bos, CFX Series Product Manager (and tall, cool
guy), and CJ Murray, project engineer. Proofreading provided
by honorary Mackoid Linn Compton.
“Mackie.,” the “Running Man” figure, “CFX,” and “EMAC” are
trademarks or registered trademarks of Mackie Designs Inc.
All other brand names mentioned are trademarks or regis-
tered trademarks of their respective holders, and are hereby
acknowledged.
23
©2002 Mackie Designs Inc., All Rights Reserved.
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Some of the
people at our
®
factory who helped
design, build, sell,
and support your
product.
®
™
®
Mackie Designs Inc.
16220 Wood-Red Rd. NE • Woodinville, WA 98072 • USA
US & Canada: 800/898-3211
Europe, Asia, Central & South America: 425/487-4333
Middle East & Africa: 31-20-654-4000
Fax: 425/487-4337 • www.mackie.com
E-mail: [email protected]
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