Integrated Amplifier
Introduction ....................................5
Connections .................................11
Enjoying Audio Sources..............15
Troubleshooting ...........................18
Specifications...............................19
Block Diagram..............................19
A-9377
Instruction Manual
Thank you for purchasing the Onkyo A-9377
Integrated Amplifier. Please read this manual thor-
oughly before making any connections or plugging in
your new Onkyo product. Following the instructions in
this manual will enable you to obtain optimum perfor-
mance and listening enjoyment from your new Onkyo
product. Please retain this manual for future reference.
En
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Precautions
1. Recording Copyright—Unless it’s for personal use
only, recording copyrighted material is illegal with-
out the permission of the copyright holder.
• If you do not use this unit for a long time, it may
not work properly the next time you turn it on, so
be sure to use it occasionally.
2. AC Fuse—The AC fuse inside the unit is not user-
serviceable. If you cannot turn on the unit, contact
your Onkyo dealer.
For European Models
3. Care—Occasionally you should dust the unit all
over with a soft cloth. For stubborn stains, use a soft
cloth dampened with a weak solution of mild deter-
gent and water. Dry the unit immediately afterwards
with a clean cloth. Do not use abrasive cloths, thin-
ners, alcohol, or other chemical solvents, because
they may damage the finish or remove the panel let-
tering.
Declaration of Conformity
We,
ONKYO EUROPE
ELECTRONICS GmbH
LIEGNITZERSTRASSE 6,
82194 GROEBENZELL,
GERMANY
declare in own responsibility, that the ONKYO product
described in this instruction manual is in compliance with the
corresponding
technical standards such as EN60065,
EN55013, EN55020 and EN61000-3-2, -3-3.
4. Power
WARNING
GROEBENZELL, GERMANY
BEFORE PLUGGING IN THE UNIT FOR THE
FIRST TIME, READ THE FOLLOWING SEC-
TION CAREFULLY.
K. MIYAGI
ONKYO EUROPE ELECTRONICS GmbH
AC outlet voltages vary from country to country.
Make sure that the voltage in your area meets the
voltage requirements printed on the unit’s rear panel
(AC 120/220-240 V, 50/60 Hz).
The power cord plug is used to disconnect this unit
from the AC power source. Make sure that the plug
is readily operable (easily accessible) at all times.
Some models have a voltage selector switch for
compatibility with power systems around the world.
Before you plug in such a model, make sure that the
voltage selector is set to the correct voltage for your
area. If it isn’t, use a small screwdriver to set it as
appropriate. For example, if the voltage in your area
is 120 volts, set the selector to “120V.” If it’s
between 220 and 240 volts, set it to “220-240 V.”
5. Never Touch this Unit with Wet Hands—Never
handle this unit or its power cord while your hands
are wet or damp. If water or any other liquid gets
inside this unit, have it checked by your Onkyo
dealer.
6. Handling Notes
• If you need to transport this unit, use the original
packaging to pack it how it was when you origi-
nally bought it.
• Do not leave rubber or plastic items on this unit
for a long time, because they may leave marks on
the case.
• This unit’s top and rear panels may get warm
after prolonged use. This is normal.
3
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Features ................................................................................................................................... 5
Supplied Accessories............................................................................................................. 5
Rear Panel................................................................................................................................ 7
Remote Controller................................................................................................................... 8
Buttons for Controlling the A-9377...................................................................................... 8
Buttons for Controlling Other Onkyo Components.............................................................. 9
Installing the Batteries....................................................................................................... 10
Aiming the Remote Controller........................................................................................... 10
Connecting Your Speakers .................................................................................................. 11
Speaker Connection Precautions...................................................................................... 11
Connecting the Speaker Cables ....................................................................................... 11
Audio Connection Precautions.......................................................................................... 12
Connecting a Turntable..................................................................................................... 12
Connecting a CD Player.................................................................................................... 12
Connecting a Cassette Deck............................................................................................. 13
Connecting an Onkyo RI Dock.......................................................................................... 13
Connecting a Component with a Line Output (TV, game console, etc.) ........................... 13
Connecting a Power Amplifier........................................................................................... 13
Connecting
Components ............................................................................................ 14
Power Connections............................................................................................................... 14
Connecting the Power Cords of Other Components......................................................... 14
Connecting the A-9377’s Power Cord............................................................................... 14
Turning On the A-9377.......................................................................................................... 15
Selecting Speakers ............................................................................................................... 15
Using Headphones................................................................................................................ 15
Listening to Components..................................................................................................... 16
Selecting the Input Source................................................................................................ 16
Muting the A-9377............................................................................................................. 16
Using the Direct Function.................................................................................................. 16
Adjusting the Bass, Treble, and Balance .......................................................................... 17
Appendix
Troubleshooting.................................................................................................................... 18
Specifications........................................................................................................................ 19
Block Diagram ....................................................................................................................... 19
4
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Introduction
Features
Supplied Accessories
❑ 90 W/Ch into 4 ohms (IEC)
❑ WRAT—Wide Range Amplifier Technology
❑ All discrete output stage circuitry
❑ Massive power transformer
❑ Precision motor volume control
❑ Tone control (bass/treble)
❑ Direct mode
Make sure you have the following accessories:
Remote controller and two batteries (AA/R6)
❑ Rec selector
❑ 6 inputs and 2 outputs
❑ Phono input
❑ Preout output
❑ Speaker A/B drive
❑ Hi-rigidity, anti-resonant chassis
❑ Aluminum front panel and volume knob
❑ Headphone jack
❑ Compatible with RI Dock for iPod
❑ RI-compatible remote controller
Power cord
(Depending on the destination country, two
power cords may be included. Use the cord
that’s compatible with your wall outlet.)
* iPod is a trademark of Apple Inc., registered in the U.S. and
other countries.
* In catalogs and on packaging, the letter added to the end of
the product name indicates the product’s color. Specifica-
tions and operation are the same regardless of color.
5
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Introduction—Continued
Front Panel
1
2
3 4 5
6
7 8 9
J
K L
A POWER ON/OFF switch (15)
H TONE/DIRECT button and indicator (16)
Turns the Direct function on or off. The indicator
lights up when the Direct function is on.
Turns the A-9377 on or off.
B SPEAKERS selector and indicators (15)
Selects speaker set A, speaker set B, both sets of
speakers, or turns the speakers off altogether. The A
and B indicators show which speaker set is selected.
I REC SELECTOR (17)
Selects the source to be recorded: LINE, PHONO,
CD, OFF, TUNER, DOCK, SOURCE.
C BASS control (17)
J Input Selector and indicators (16)
Selects the input source: LINE, DOCK, PHONO,
CD, TUNER, or TAPE. The indicators show which
input source is selected.
Adjusts the level of bass sounds.
D MUTING indicator (16)
Lights up when the A-9377 is muted.
K Remote control sensor (10)
E TREBLE control (17)
Receives control signals from the remote controller.
Adjusts the level of treble sounds.
L PHONES jack (15)
F Volume control (16)
Phone jack for connecting a pair of headphones.
Adjusts the volume.
G BALANCE control (17)
Adjusts the balance of the left and right channels.
6
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Introduction—Continued
Rear Panel
1
2
3
4
5
6 7 8 9 J K LM
N
* The type and number of connectors depends on the
destination country.
A GND terminal
J LINE
Analog audio input for connecting a component
Terminal for connecting a turntable’s ground wire.
with a line-level audio output (e.g., game console,
TV, etc.)
B SPEAKERS A
Terminal posts for connecting speaker set A.
K DOCK
Analog audio input for connecting an RI Dock.
L PREOUT
C SPEAKERS B
Terminal posts for connecting speaker set B.
D AC INLET
Analog audio output for connecting a separate
power amplifier.
Supplied power cord connects here.
E AC OUTLETS
Note:
Supply AC power to other audio components. The
type of connector depends on the destination coun-
try.
• Do not connect a source component to the PRE-
OUT jacks.
M
REMOTE CONTROL
F PHONO (MM)
(Remote Interactive) jacks can be connected to
jacks on other Onkyo audio components so that
you can control them with the A-9377’s remote con-
Analog audio input for connecting a turntable with a
moving-magnet cartridge.
G CD
troller. To use
, you must also make an analog
Analog audio input for connecting a CD player.
component.
H TUNER
Analog audio input is for connecting a tuner.
N VOLTAGE SELECTOR (not European model)
If your A-9377 has a VOLTAGE selector, set it to
match the AC voltage used in your area before plug-
ging in the power cord. (See page 3.)
I TAPE IN/OUT
Analog audio input and output for connecting a cas-
sette deck.
See pages 11–14 for connection information.
7
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Introduction—Continued
Buttons for Controlling the A-9377
Remote Controller
The following buttons control the A-9377:
In the illustration below, numbers in circles indicate but-
tons that can be used to control the A-9377. These but-
tons are explained on this page. Numbers in squares
indicate buttons that can be used to control other Onkyo
D VOLUME [ ]/[ ] (16)
Adjusts the volume of the A-9377.
O INPUT [ ]/[ ] (16)
Selects the input source: LINE, DOCK, PHONO,
CD, TUNER, or TAPE.
audio components connected to the A-9377 via
These buttons are explained on the next page.
.
Q MUTING (16)
Mutes the A-9377.
0
A
B
1
2
C
D
O
3
F
4
Q
5
6
H
I
7
8
9
8
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Introduction—Continued
Buttons for Controlling Other Onkyo Components
When other Onkyo audio components are connected to the A-9377 via
, you can control them with the A-9377’s
remote controller. The operation of each button depends on the selected input source. For example, when the DOCK
input source is selected, the [RANDOM] button will operate an RI Dock/iPod’s Shuffle function. But when the TAPE
input source is selected, it will operate a cassette deck’s Dolby NR function.
The following table lists the function of the remote controller’s buttons for each input source. Where no function is
listed, the button does nothing. Refer to each component’s instruction manual for complete operating instructions.
Input source
DOCK
(RI Dock)
CD
(CD player)
TUNER
(Tuner)
TAPE
(Cassette deck)
Remote
controller button
CD [1]...[9]
[1]...[9]
[>10]
1
2
[>10]
[10/0]
[10/0]
[BAND]
[BAND]
[FM MODE]
PRESET [+]/[–]
[FM MODE]
PRESET [+]/[–]
TUNING [ ]/[
[DIMMER]
]
TUNING [ ]/[
]
3
5
[DIMMER]
*1
Pause [
Play [
]
Pause [
]
Pause [
Play [
]
Reverse Play [
]
1
]
]
Play [
]
]
]
Play [ ]*
Stop [ ]*
1
Pause [
]
Stop [
Stop [
6
7
8
Rew/FF [
]/[
]
Rew/FF [
]/[
]
Rew/FF [
]/[
]
[RANDOM]
[REPEAT]
[SHUFFLE]
[REPEAT]
[RANDOM]
[REPEAT]
[DOLBY NR]
[REV MODE]
PLAYLIST [ ]/[
ALBUM [ ]/[
]
PLAYLIST [ ]/[
ALBUM [ ]/[
]
]
]
9
MENU/SELECT
]/[
[PLAY MODE]
MENU/SELECT
]/[
[
]
[
]
0
A
B
C
D
F
[PLAY MODE]
*2
[GROUP/SEARCH]
[MEMORY]
[ENTER]
[SEARCH]
[MEMORY]
[ENTER]
[CLR]
[CLR]
[DISPLAY]
[BACKLIGHT]
Prev/Next
[DISPLAY]
Prev/Next
H
I
Prev/Next [
]/[
]
Rew/FF [
]/[
]
[
]/[
]
[
]/[
]
[SCROLL]
[BACKLIGHT]
1. On a double cassette deck, only deck B can be controlled.
2. For use with MP3 CDs.
Note:
• With some components, some buttons may not work
as expected. Refer to the component’s instruction
manual for complete operating instructions.
9
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Introduction—Continued
Installing the Batteries
Aiming the Remote Controller
When using the remote controller, point it toward the
A-9377’s remote control sensor, as shown below.
To open the battery compartment, press
the small hollow and slide open the cover.
1
Remote control sensor
About 5 m
(16 f
eet)
Insert the two supplied batteries (AA/R6)
in accordance with the polarity diagram
inside the battery compartment.
2
Notes:
• The remote controller may not work reliably if the
A-9377 is subjected to bright light, such as direct sun-
light or inverter-type fluorescent lights. Keep this in
mind when installing.
• If another remote controller of the same type is used in
the same room, or the A-9377 is installed close to
equipment that uses infrared rays, the remote control-
ler may not work reliably.
Slide the cover shut.
3
• Do not put anything on top of the remote controller,
such as a book or magazine, because a button may be
pressed continuously, thereby draining the batteries.
• The remote controller may not work reliably if the
A-9377 is installed in a rack behind colored glass
doors. Keep this in mind when installing.
• The remote controller will not work if there’s an obsta-
cle between it and the A-9377’s remote control sensor.
Notes:
• If the remote controller doesn’t work reliably, try
replacing the batteries.
• Do not mix new and old batteries or different types of
batteries.
• If you intend not to use the remote controller for a long
time, remove the batteries to prevent damage from
leakage or corrosion.
• Expired batteries should be removed as soon as possi-
ble to prevent damage from leakage or corrosion.
10
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Connections
ConnectingYour Speakers
You can connect one or two sets of speakers (A/B) to
the A-9377 and select which set outputs sound, or use
both sets simultaneously.
Connecting the Speaker Cables
Strip about 15 mm (5/8 in.)
15 mm
(5/8")
1
of insulation from the
ends of the speaker
Speaker Connection Precautions
• Always connect speakers in pairs.
cables, and twist the bare
wires tightly, as shown.
• If you want to output sound from speaker setsA and B
simultaneously, you must use speakers with an imped-
ance of 8 to 16 ohms. If you connect speakers with a
lower impedance, and use the A-9377 at high volume
levels for a long period, the built-in protection circuit
may be activated.
• If your speakers have an impedance of 4 to 8 ohms,
connect them to either the SPEAKERS A or SPEAK-
ERS B terminals, or do not output sound from both
speaker sets simultaneously.
Unscrew the terminal.
2
Fully insert the bare
wires.
3
• Disconnect the power cord from the wall outlet before
making any connections.
Screw the terminal tight.
4
• Read the instructions supplied with your speakers.
• Pay close attention to speaker wiring polarity. In other
words, connect positive (+) terminals only to positive
(+) terminals, and negative (–) terminals only to nega-
tive (–) terminals. If you get them the wrong way
around, the sound will be out of phase and will sound
unnatural.
• Unnecessarily long or very thin speaker cables may
affect the sound quality and should be avoided.
• Be careful not to short the
The following illustration shows which speaker should
be connected to each pair of terminals.
Right
speaker
Left
speaker
Speaker set A
–
+
–
+
positive and negative wires.
Make sure also the wires do
not touch the rear panel.
Doing so may damage the
A-9377.
• Do not connect more than one
cable to each speaker terminal. Doing so may damage
the A-9377.
• Do not connect a speaker to more than one pair of
speaker terminals.
A-9377
–
+
–
+
Right
speaker
Left
speaker
Speaker set B
11
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Connections—Continued
ConnectingYour Components
• Push each plug in all the
way to make a good connec-
tion (loose connections can
cause noise or malfunc-
tions).
Audio Connection Precautions
Right!
• Always refer to the instruction manual that came
with the component you are connecting.
• Do not plug in the power cord until all connections
have been made.
Wrong!
■ RCA Connection Color Coding
• Red connectors are used for the right channel, and
white connectors are used for the left channel.
• Do not bind audio cables with power cords and
speaker cables. Doing so may adversely affect the
sound quality.
• To prevent interference, keep power cords and
speaker cables away from the tuner’s antenna.
Left (white)
L
Right (red)
R
Connecting a Turntable
Connecting a CD Player
The A-9377’s PHONO input is designed for use with a
turntable fitted with a moving-magnet (MM) cartridge.
Use an analog audio cable to connect the A-9377’s
PHONO L/R jacks to the audio output jacks on the turn-
table, as shown. If there are RCA shorting plugs in the
jacks, remove them before connecting.
Use an analog audio cable to connect the A-9377’s CD
L/R jacks to the analog audio output jacks on the CD
player, as shown.
ANALOG
OUT
AUDIO OUT
Connecting a Tuner
Use an analog audio cable to connect the A-9377’s
TUNER L/R jacks to the analog audio output jacks on
the tuner, as shown.
Ground wire
Notes:
• If the turntable has a ground wire, connect it to
A-9377’s GND terminal. With some turntables, con-
necting the ground wire may cause hum, in which case
it should be disconnected.
• If the turntable has a moving-coil (MC) type cartridge,
you’ll need a commercially available MC head amp or
transformer. In this case, connect the turntable to the
head amp or transformer, and connect that to the
A-9377’s PHONO L/R jacks.
OUT
12
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Connections—Continued
Connecting a Cassette Deck
Connecting a Component with a Line
Output (TV, game console, etc.)
Use an analog audio cable to connect the A-9377’s
TAPE IN L/R jacks to the cassette deck’s analog audio
output jacks, and use another analog audio cable to con-
nect the A-9377’s TAPE OUT L/R jacks to the cassette
deck’s analog audio input jacks, as shown.
Use an analog audio cable to connect the A-9377’s
LINE L/R jacks to the line output jacks on the TV or
other component, as shown.
AUDIO OUT
/
REC
(IN)
PLAY
(OUT)
Note:
Connecting an Onkyo RI Dock
• If your TV doesn’t have an audio output, connect your
VCR’s audio output to the A-9377, and use your
VCR’s tuner to listen to the TV.
Use an analog audio cable to connect the A-9377’s
DOCK L/R jacks to the RI Dock’s analog audio output
jacks, and use an
jack to the RI Dock’s
cable to connect the A-9377’s
jack, as shown.
Connecting a Power Amplifier
You can use the A-9377 as just a preamplifier and con-
nect it to a more powerful power amplifier.
Use an analog audio cable to connect the A-9377’s
PREOUT L/R jacks to the analog audio input jacks on
the power amplifier, as shown.
*
R
----
L
AUDIO OUT
RI Dock
Analog input jacks
Note:
* See page 14 if you need to connect several
ble Onkyo components to the A-9377.
-capa-
• Signals output by the PREOUT jacks are not affected
by the A-9377’s Volume, BALANCE, BASS, and
TREBLE controls.
• When the A-9377 is connected to a power amplifier, if
the power amplifier is off and the A-9377 is used on its
own, the sound may be distorted. To prevent this,
always turn on the power amplifier, or disconnect it
from the A-9377.
Note:
• If you have an RI Dock such as the DS-A1 or DS-A2,
set its RI MODE switch to “HDD” or “HDD/DOCK.”
Refer to the RI Dock’s instruction manual for details.
13
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Connections—Continued
Connecting
Components
Power Connections
Connecting the A-9377 to your other Onkyo
ble components with cables allows you to control
them all with the A-9377’s remote controller, like an
integrated system, with the following functionality.
-capa-
Connecting the Power Cords of Other
Components
The A-9377 has switched AC outlets on its rear panel
that can be used to connect the power cords of other
components that you intend to use with the A-9377.
These components can then be left turned on so that
they turn on and off as and when the A-9377 is turned
on and off.
Direct Change
with
, the A-9377 will automatically select that
component as the input source.
Remote Control
You can control components connected with
the A-9377’s remote controller. See page 9 for details.
Use theAC outlets for components that have no Standby
from
function, such as the Onkyo CD Player.
-capable
Onkyo components with a Standby function must be
connected directly to a wall outlet.
To use all functionality, in addition to an con-
nection, each component must be connected to an
analog audio input on the A-9377.
A-9377
Onkyo CD player,
Onkyo cassete deck,
jacks
Onkyo tuner, etc.
Cautions:
• Connect only audio components to the AC OUT-
LETS.
jacks
• Make sure the total capacity of the components you
connect to the AC OUTLETS does not exceed the
maximum capacity stated on the A-9377’s rear panel
(TOTAL 100 W).
Onkyo RI Dock
cables
Connecting the A-9377’s Power Cord
• Before connecting the power cord, connect all of your
speakers and audio components.
Notes:
• Push plugs in all the way to make good connections.
• Turning on the A-9377 may cause a momentary power
surge, which might interfere with other electrical
equipment on the same circuit. If this is an issue, plug
the A-9377 into a different branch circuit.
•
cables are special cables solely for use with
Onkyo products (no
cables are supplied with the
cables for connections.
jacks to only -capable Onkyo compo-
A-9377). Use only
• Connect
nents. Connecting them to other manufacturers’ com-
ponent may cause a malfunction.
• Some
port all
-capable Onkyo components may not sup-
functionality. Refer to each component’s
instruction manual for full details.
To wall outlet
For optimum performance, plug the A-9377 into its own
wall outlet. Do not connect it to a wall outlet that’s also
used by a high-power appliance, such as a heater.
14
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Enjoying Audio Sources
Turning On the A-9377
Using Headphones
You can connect a pair of stereo headphones (1/4-inch
phone plug) to the A-9377’s PHONES jack for private
listening.
POWER
To turn on the A-9377, press the
[POWER] switch.
On the Input Selector, the indicator for
the currently selected source lights up.
Notes:
• Always turn down the volume before connecting your
headphones.
• The speakers are not turned off when the headphones
plug is inserted in the PHONES jack. To turn off the
speakers, set the SPEAKERS selector to OFF.
When the A-9377 is turned on, to pro-
tect the speakers, it outputs no sound
for about 5 seconds, allowing the inter-
nal circuitry time to stabilize.
To turn off the A-9377, press the
[POWER] switch again.
Selecting Speakers
SPEAKERS selector
You can select which set of speakers outputs sound.
Use the SPEAKERS selector to
select the speakers.
OFF: No speakers output sound.
A: Speaker set A outputs sound.
B: Speaker set B outputs sound.
A+B: Both speaker set A and speaker
set B output sound.
The A and B indicators show which
speaker set is selected.
15
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Enjoying Audio Sources—Continued
Adjusting the Volume
Listening to Components
To adjust the volume, use the
A-9377’s Volume control, or the
remote controller’s VOLUME
Volume control
Input Selector
TONE/DIRECT
[
]/[ ] buttons.
Turn the Volume control clockwise to
increase the volume; counterclock-
wise to decrease it.
Remote
controller
INPUT
/
Muting the A-9377
VOLUME
/
MUTING
You can temporarily mute the output of the A-9377.
Press the remote controller’s
[MUTING] button.
Remote
controller
The output of the A-9377 is muted and
the MUTING indicator flashes.
Selecting the Input Source
Use the Input Selector to select
the source component you want
to listen to.
To unmute the A-9377, press the
[MUTING] button again.
LINE: Component connected to the
LINE jacks.
The Mute function can also be can-
celled by adjusting the Volume control
or pressing the remote controller’s
VOLUME [ ]/[ ] buttons.
DOCK: Component connected to the
DOCK jacks.
PHONO: Turntable connected to the
PHONO jacks.
CD: Component connected to the CD
jacks.
Using the Direct Function
TUNER: Component connected to the
TUNER jacks.
TAPE: Component connected to the
TAPE IN jacks.
With the Direct function, you can bypass the tone con-
trols for a purer sound.
Remote
controller
Press the A-9377’s
You can also use the remote control-
ler’s INPUT [ ]/[ ] buttons to select
the input source.
[TONE/DIRECT] button.
The tone controls are bypassed and the
TONE/DIRECT indicator lights up.
To turn off the Direct function,
press the [TONE/DIRECT] button
again.
The Direct function turns off and the
TONE/DIRECT indicator goes off.
Note:
• The BASS and TREBLE tone controls have no effect
while the Direct function is on.
16
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Enjoying Audio Sources—Continued
Adjusting the Bass,Treble, and Balance
Recording
BASS
TREBLE
BALANCE
Unless you have the full consent of the
copyright holder, copyright laws prohibit
using your recordings for anything other
than personal enjoyment!
REC SELECTOR
Use the BASS control to adjust
the bass.
Turn the control clockwise to increase
the level of bass sounds; counterclock-
wise to decrease the level.
Use the REC SELECTOR to
select the source you want to
record.
LINE: Component connected to the
LINE jacks.
PHONO: Turntable connected to the
PHONO jacks.
CD: Component connected to the CD
jacks.
OFF: Nothing is output by the TAPE
OUT L/R jacks.
TUNER: Component connected to the
TUNER jacks.
DOCK: Component connected to the
DOCK jacks.
1
Use theTREBLE control to adjust
the treble.
Turn the control clockwise to increase
the level of treble sounds; counter-
clockwise to decrease the level.
Use the BALANCE control to
adjust the left/right balance.
Turn the control clockwise to increase
the level of right speaker; counter-
clockwise to increase the level of left
speaker. Normally, it should be set to
the central position.
SOURCE: Component selected by the
Input Selector.
Prepare the recorder:
• Set the recorder so that it’s ready for
recording.
2
• If necessary, adjust the recording
level on the recorder.
• See the recorder’s instruction manual
for more information.
Start playback on the source
component.
3
Notes:
• Signals output by the TAPE OUT L/R jacks are not
affected by the A-9377’sVolume, BALANCE, BASS,
and TREBLE controls.
• If you’re using an Onkyo cassette deck that’s con-
nected via
, for dubbing or synchro recording, set
the REC SELECTOR to SOURCE.
17
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Troubleshooting
If you have any trouble using the A-9377, look for a
solution here. If you cannot resolve the issue yourself,
contact your Onkyo dealer.
Remote Controller
The remote controller doesn’t work.
• Make sure that the batteries are installed with the cor-
rect polarity (page 10).
Power
• Try installing new batteries. Do not mix different
types of batteries or old and new batteries (page 10).
• Make sure that the remote controller is not too far
away from the A-9377 and that there’s no obstruction
between the remote controller and the A-9377’s
remote control sensor (page 10).
• Make sure that the A-9377 is not subjected to direct
sunshine or inverter-type florescent lights. Relocate if
necessary (page 10).
Cannot turn on the A-9377.
• Make sure that the power cord is properly plugged into
the wall outlet.
• Unplug the power cord from the wall outlet, wait ten
seconds or more, then plug it in again.
The SPEAKERS A and B indicators are both flashing.
• The amp protection circuit has been activated. Set the
POWER switch to OFF immediately, remove the
power cord from the wall outlet, and contact your
Onkyo dealer.
• If the A-9377 is installed in a rack or cabinet with col-
ored glass doors, the remote controller may not work
reliably when the doors are closed (page 10).
Audio
Cannot control other components?
• If it’s an Onkyo component, make sure that the
cable and analog audio cable are connected properly.
There’s no sound or it’s very quiet.
• Make sure that all audio plugs are pushed in all the
way (page 12).
• Make sure that the inputs and outputs of all compo-
Connecting only an
cable will not work. (page 14)
• Make sure that the polarity of the speaker cables is
correct and that the bare wires are in contact with the
metal part of each speaker terminal (page 11).
• Make sure that the correct input source is selected
(page 16).
• If the MUTING indicator is flashing, press the remote
controller’s [MUTING] button to unmute the A-9377
(page 16).
The A-9377 contains a microcomputer for signal
processing and control functions. In very rare
situations, severe interference, noise from an
external source, or static electricity may cause it
to lock up. In the unlikely event that this happens,
unplug the power cord from the wall outlet, wait
at least ten seconds, and then plug it back in
again.
• Make sure that none of the cables are bent, twisted, or
damaged.
• If your turntable uses an MC type cartridge, you must
use an MC head amp or MC transformer (page 12).
• Make sure the SPEAKERS selector is set correctly. If
it’s set to OFF, no speakers will output sound
(page 15).
Onkyo is not responsible for damages (such as
CD rental fees) due to unsuccessful recordings
caused by the unit’s malfunction. Before you
record important data, make sure that the mate-
rial will be recorded correctly.
Noise can be heard.
• Using cable ties to bundle audio cables with power
cords, speaker cables, and so on may degrade the
audio performance, so do not bundle them together.
• An audio cable may be picking up interference. Try
repositioning your cables.
The tone controls have no effect.
• If the TONE/DIRECT indicator is on, the Direct func-
tion is on and the tone controls have no effect. Press
the [TONE/DIRECT] button to turn the function off.
The TONE/DIRECT indicator will go off (page 16).
18
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Specifications
Rated output power
European (IEC):
Maximum output power (JEITA):
Dynamic power:
2ch × 90 W at 4 Ω, 1 kHz, 2ch driven
2ch × 132 W at 4 Ω, 1 kHz, 2ch driven
124 W + 124 W (4 Ω)
80 W + 80 W (8 Ω)
THD (total harmonic distortion):
0.08% (1 kHz, 1 W)
Damping factor:
Input sensitivity and impedance:
60 (1 kHz, 8 Ω)
200 mV, 45 kΩ (LINE)
2.5 mV, 45 kΩ (PHONO MM)
150 mV, 2.2 kΩ (REC OUT)
50 mV (MM, 1 kHz, 0.5%)
10 Hz–100 kHz, +1 dB, –3 dB (CD)
+10 dB, –8 dB, 100 Hz (BASS)
+9 dB, –8 dB, 10 kHz (TREBLE)
96 dB (CD, IHF-A)
Output level and impedance:
Phono overload:
Frequency response:
Tone control:
Signal to Noise ratio:
Speaker impedance:
Power supply:
70 dB (PHONO, IHF-A)
4–16 Ω
AC 230 V, 50 Hz
AC 120/220-240 V, 50/60 Hz
286 W
Power consumption:
Dimensions (W × H × D):
Weight:
435 × 150 × 348 mm
17-1/8 × 5-7/8 × 13-11/16
8.8 kg (19.4 lb.)
Analog inputs:
Analog outputs:
Speaker outputs:
Phones:
PHONO, CD, TUNER, TAPE, LINE, DOCK
TAPE, PREOUT
2 (A, B)
1
Specifications and features are subject to change without notice.
Block Diagram
PHONO AMP
PHONO
SELECTOR
INDICATOR
DIRECT
INDICATOR
MUTE
INDICATOR
SPEAKER A/B
INDICATOR
CD
Selector IC and
MAIN VOLUME
L ch
TONE AMP
TUNER
BASS TREBLE
POWER AMP
SPEAKERS
TONE/DIRECT
SPEAKERS A
SPEAKERS B
BALANCE
TAPE IN
MUTE
DIRECT AMP
TAPE OUT
SPEAKERS A
SPEAKERS B
R ch
LINE
DOCK
MUTE CONTROL
TONE/DIRECT CONTROL
VOLUME and SELECTOR CONTROL
PRE-OUT
RI CONTROL
19
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Sales & Product Planning Div. : 2-1, Nisshin-cho, Neyagawa-shi, OSAKA 572-8540, JAPAN
Tel: 072-831-8023 Fax: 072-831-8163
ONKYO U.S.A. CORPORATION
18 Park Way, Upper Saddle River, N.J. 07458, U.S.A.
ONKYO EUROPE ELECTRONICS GmbH
Liegnitzerstrasse 6, 82194 Groebenzell, GERMANY
ONKYO EUROPE UK Office
Suite 1, Gregories Court, Gregories Road, Beaconsfield, Buckinghamshire, HP9 1HQ
UNITED KINGDOM Tel: +44-(0)1494-681515 Fax: +44(0)-1494-680452
HOMEPAGE
ONKYO CHINA LIMITED
Unit 1&12, 9/F, Ever Gain PlazaTower 1, 88, Container Port Road, Kwai Chung,
N.T., HONG KONG Tel: 852-2429-3118 Fax: 852-2428-9039
I0904-1
SN 29400100
(C) Copyright 2009 ONKYO CORPORATION Japan. All rights reserved.
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