EVID 12.1P User Manual
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Product Description
The 12.1P is a self contained, powered 12" subwoofer providing over
300 watts continuous output to the speaker. The 12.1P makes the
addition of a subwoofer to a EVID system very easy and efficient. Since
the unit is self-powered, the full range satellite speakers can be powered
independently from the subwoofer and optimized for the installation.
The 12.1P features a high performance, variable, 12-dB/octave
crossover and a full range line level output along with a high pass line
level output on the rear panel. The unit can be mounted in a variety of
configurations with the bracket hardware supplied.
Product Feature Identification
The 12.1P subwoofer comes with a dual-mode mounting bracket that
enables the unit to be easily mounted at either a wall/wall (corner) or on
a wall/ceiling (midwall) junction. The included forged steel eyebolt
provides the installer a solid attachment point for a safety line. When
properly anchored and supported, the 12.1P subwoofer may also be
safely installed protruding just 2 3/4" down through a standard sus-
pended ceiling grid. See installation instructions.
Dual-mode
mounting
bracket
Safety line
attachment
eyebolt
Acoustic
ports
Amplifier
panel
Bracket clip
mounting
points
EV®
logo
Figure 1: EVIDTM 12.1P Features Figure 2: EVIDTM 12.1P Features
(Front) (Rear)
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Illustrated in Figure 3 are the major
components of the EVIDTM 12.1P
subwoofer amplifier.
A
C
B
D
A. Variable Crossover Control
B. High Pass XLR Line Level Output
C. Full Range XLR Line Level Output
D. Power Switch
E. AC Line Cord Connector
E
Figure 3: EVIDTM 12.1P
Amplifer Panel
Packing List
B
Below is a list of parts included with
the EVIDTM 12.1P subwoofer. The
parts are illustrated in Figure 4.
A
A. EVIDTM 12.1P
B. Wall/Corner Mounting Bracket
C. (4) Rubber Mounting Feet
D. (2) Speaker Mounting Clips
E. Eyebolt
F. Right Angle Power Cord
G. Owner’s Manual
C
D
H. Warranty Card
F
E
G
H
Figure 4: EVIDTM 12.1P Packing List
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Step-by-Step Installation & Wiring
Step 1: Mount the Bracket
The mounting bracket can be installed two ways (see Figures 5 and 6),
allowing optimal configurations for installations. Leave 1.5" of space
between the bracket and the ceiling when installing in a corner! Attach
the bracket to the wall with suitable fasteners screwed into structural
members in the wall. Remember: It is the installer’s responsibility to
insure that the structure can safely support the load.
Use a
mimimum of
four screws
Joist
Bracket
Ceiling
Wall
Bracket
Use a
mimimum of
four screws
Stud
Figure 5: Corner Installation
Figure 6: Midwall Installation
(Top View)
(Side View)
Step 2: Install the Safety Line
Using accepted safe rigging practices, secure one end of a suitable
safety line (use cable, not chain, which will rattle) to a strong, secure
point above the speaker, a point that can withstand the shock of the
falling speaker. This is especially important in public spaces constructed
with light gauge steel studs. Do not attach the safety line to the bracket!
The safety line should prevent the speaker from falling if the bracket
tears loose from the wall. Secure the other end to the eyebolt that is fully
threaded into the enclosure.
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Step 3: Wire the Speaker
A typical wiring configuration is shown in Figure 7. It is highly advisable
to support the unit while these connections are being made. When
mounting the speaker in a corner mount configuration, a right angle XLR
connector such as Neutrik #NC3MRC or equiv. is required for the signal
connections (see Figure 7). Connect the line level signal from the mixer,
pre amplifier or other source into the line input connector. Plug in the
power cord and connect the unit to a standard 120VAC power source.
The proper crossover setting is
determined by the satellite
speakers used. The following
are general guidelines:
Satellite
Speaker
Crossover
Setting
3.2
4.2
6.2
110 Hz
95 Hz
80 Hz
Adjust the crossover according
to the chart above. Set the
appropriate sub level before
making the final mounting to the
bracket.
Figure 7: Wiring Configuration
Step 4: Mount the Speaker to the Bracket
First remove the two Phillips-head screws on the rear of the enclosure.
Use the supplied eyebolt to mount one mounting clip to the top of the
speaker as shown in Figure 8. Check to make sure that the wiring
connections to the amplifier and the satellite speakers are correct and
secure.
For corner mounting
Attach the four rubber mounting feet to the front side edges, and secure
the safety line to the eyebolt. Lift the enclosure up to the ceiling and
center it back it into the corner until it touches the bracket rungs, then
carefully lower it so the top clip hooks over the top rung of the bracket
(1). Insert one of the 3/8-16-thread Phillips-head screws through the
remaining clip and, with the clip pointing up, thread the screw finger-tight
into the lower mtg. hole on the enclosure (2, 3). Level the clip and tighten
securely with a #3 right-angle Phillips screwdriver. Even though the
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enclosure hangs from the top clip, always install the lower one to secure
against possible disengagement of the top clip. Straighten the EV® logo
and press firmly at its center to seat it securely into its mounting hole.
Rungs
1
2
1
3
This side towards wall
3
2
Figure 8: Corner Mounting
Figure 9: Midwall Mounting
For midwall mounting
Attach the four rubber mounting feet inside the corners on the side of the
enclosure that will be against the wall and attach the safety line to the
eyebolt. Insert one of the 3/8-16-thread Phillips-head screws through the
remaining clip and keep it within arm’s reach. Lift the enclosure up to the
ceiling and bring its back into contact with the bracket rungs. Slide the
enclosure sideways to engage the clip over one bracket rung (1) and,
while holding it tight against both rungs, insert the 3/8-16-thread screw
with its clip into the remaining mounting hole so the clip engages the
remaining bracket rung (2, 3). Finger-tighten the screw and straighten
the clip. The enclosure may now be released. It will slide down the rungs
until the four rubber feet are snug against the wall. Using a #3 right-angle
Phillips screwdriver, securely tighten the second Phillips-head screw.
Gently rotate the EV® logo a quarter turn and press firmly at its center to
seat it securely into its mounting hole. See Figure 9.
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Mounting through a suspended ceiling grid
On the rear of the enclosure install and tighten two 3/8-16-thread forged
steel eyebolts (one is included) with a 3/8" flat washer under each. Cut
two pieces of ordinary drop ceiling L angle (wall track) 23 3/4" long and
screw them to the top and bottom of the enclosure with 3/4"-long sheet
metal screws, as shown in Figure 10. Connect all of the wires and
suspend the enclosure, face down, by the eyebolts in accordance with
accepted safe rigging practice. Adjust the length of the rigging cables so
the tips of the installed L angles just rest on the ceiling cross-tees. This
stabilizes the enclosure from rocking. Trim the ceiling panel to fit the new
opening(s) and drop into place. It is the installer’s responsibility to assure
that the chosen rigging points are strong enough to support the load.
Warning: Never try to install this speaker in a suspended
ceiling without proper rigging support!
Rigging
cables
L angle
Ceiling
tile
Eyebolts
Acoustic port
Figure 10: Attach L Angles to Speaker
Floor Mounting
The EVID™ 12.1P may be placed directly on the floor in a corner or on
its side along a straight wall by simply attaching the four rubber mounting
feet to the side that will sit on the floor.
Step 5: Test System Operation
After all connections are made test the complete system operation.
Appendix C on page 10 contains a troubleshooting guide to assist in
locating a variety of speaker related problems.
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Safety Agency Compliance
The EVID™ 12.1P bracket system has successfully passed EIA 636 at a
safety factor of 6:1. The bracket system is intended to support the
EVID™ 12.1P only. Do not use it for any other purpose. Never set
anything on, or hang anything from, the EVID™ 12.1P enclosure when
using this bracket. For a copy of the model-specific CE Declaration of
Conformity, contact Electro-Voice at the address listed at the end of this
manual.
Maintenance
Your EVID™ system has been designed and manufactured to provide
years of durability and reliable service. No routine maintenance is
necessary. Units may be cleaned by wiping with a soft, damp cloth.
Never use solvents or harsh cleaning agents of any kind.
Appendix A: Warranty Statement
Electro-Voice® Speakers and Speaker Systems are guaranteed against
malfunction due to defects in materials or workmanship for a period of
five (5) years from the date of original purchase. The Limited Warranty
does not apply to burned voice coils or malfunctions such as cone and/or
coil damage resulting from improperly designed enclosures. Electro-
Voice® active electronics associated with the speaker systems are
guaranteed for three (3) years from the date of original purchase.
If such malfunction occurs during the specified period, the product will be
repaired or replaced (at our discretion) without charge. The product will
be returned to the customer prepaid.
Exclusions and Limitations
The Limited Warranty does not apply to: (a) exterior finish or
appearance; (b) certain specific items described in the individual
product-line statements below, or in the individual product sheet or
owner’s manual; (c) malfunction resulting from use or operation of the
product other than as specified in the product data sheet or owner’s
manual; (d) malfunction resulting from misuse or abuse of the product;
or (e) malfunction occurring at any time after repairs have been made to
the product by anyone other than Electro-Voice® Service or any of its
authorized representatives.
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Obtaining Warranty Service
To obtain warranty service, a customer must deliver the product, prepaid,
to Electro-Voice® Service or to any of its authorized service
representatives, together with proof of purchase of the product in the
form of a bill of sale or receipted invoice. A list of authorized service
representatives is available from Electro-Voice® Service at:
12000 Portland Avenue,
Burnsville, MN 55337
Ph: (877) 863-4166
Incidental and Consequential Damages
Excluded
Product repair or replacement and return to the customer are the only
remedies provided to the customer. Electro-Voice® shall not be liable for
any incidental or consequential damages including, without limitation,
injury to persons or property or loss of use. Some states do not allow the
exclusion or limitation of incidental or consequential damages, so the
above limitation or exclusion may not apply to you.
Other Rights
This warranty gives you specific legal rights, and you may also have
other rights which vary from state to state.
Appendix B: Installation
Examples
The EVID™ Series is a product family with the flexibility to fit the
requirements of many different applications. Listed below are some
suggested combinations for systems using the 12.1P with EVID full
range speakers:
•
Rich, full-sounding low-level background music and paging in a
quiet restaurant, office, or retail space: use two EVID™ 3.2’s or
C4.2’s for each 12.1P installed.
•
Moderate-level music and paging in a sports bar/restaurant or
upbeat retail space: install two or four EVID™ 4.2’s or C8.2’s for
each 12.1P used.
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•
•
Higher-level foreground music in bass heavy applications such
as dance floors, amusement arcades, or loud bars: use one pair
of EVID™ 6.2’s for each 12.1P.
For example, a large hotel might use eight 3.2’s and two 12.1P’s
in the dining room, eight 4.2’s and two 12.1P’s in the lounge, four
6.2’s with two 12.1P’s surrounding the dance floor, 6.2’s around
the pool, 6.2’s or 4.2s with or without 12.1P’s in the lobby, and
3.2’s in the corridors.
Characteristics of All Subwoofers
While subwoofers do radiate sound omni-directionally (in all directions)
and the sound is generally non-localizable (one can’t hear exactly where
it comes from), subwoofer sound level still drops off the farther one
moves from the subwoofer. The highest output and best room loading
are accomplished with the subwoofer mounted in a corner at a three-
boundary junction (wall/wall/ceiling or wall/wall/floor, an arrangement
also referred to as 1/8 space). Mounting at a two-boundary junction (wall/
ceiling, or 1/4 space) produces three dB less output, and mounting in the
middle of a room in the ceiling (1/2 space) reduces output still another
three dB.
Subwoofers produce large amounts of long wavelength low-frequency
energy. Every object has its own resonant frequency, and long
wavelengths tend to excite large objects (like walls, floors, doors and
ceiling panels). Anything loose in or on a ceiling or wall will buzz or rattle
as a subwoofer’s level is increased. Most of these can be isolated and
fixed with small, strategically placed bits of foam tape. Others may
require driving additional nails or screws and perhaps some caulking to
dampen their sympathetic movement.
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Appendix C: Painting Process
•
Remove the four screws securing the front hatch and lift off the
hatch panel. Carefully twist and lift off the EV® logo and set it
aside.
•
The foam grille blocks are held in place by sharp pins protruding
through the baffle board. Note the relative position of the foam
and carefully lift the blocks off the pins. Mask around and over
the amplifier panel with tape and heavy paper and tape a piece
of heavy paper over the woofer. It is not necessary to remove
any components.
•
•
Clean the cabinet, bracket and clips by rubbing with a lightly
dampened cloth. Do not use abrasives such as sandpaper or
steel wool. Never use gasoline, kerosene, acetone, MEK, paint
thinner, harsh detergents, or other chemicals, as these agents
may cause permanent damage to the enclosure.
After cleaning, apply two or more two thin coats of either latex or
oil-based paint. Spraying is recommended, but a brush and
small roller work very well. It is not necessary to paint all the way
up to the woofer. Only the visible surfaces need to be painted:
the hatch front and side edges, the exposed enclosure surfaces
down to the hatch gaskets and about halfway under where the
foam blocks sit. Likewise, the rear sides of the bracket and clips
need not be painted. The hatch screw heads may be painted, if
desired.
•
When the paint is thoroughly dry, carefully unmask everything.
Replace the foam blocks, pressing them gently down onto the
sharp pins. Replace the hatch cover and tighten the four screws.
Locate the small center hole, properly orient the EV® logo, and
press it firmly into place at its center to reseat it in the mounting
hole.
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Appendix D: Troubleshooting
Guide
Problem
Possible Cause(s) Action
1. No sound
Amplifier
Verify that that the line level signal cable’s
XLR connector has been pushed all the way
into the ‘Low Level In’ jack on the amplifier
panel. Turn the ‘Power’ switch on and the
volume up until you can hear sound emitting
from the 12.1p subwoofer. If there is still no
sound, the problem is with the line level
signal.
Line level signal
Connect a known working powered test
speaker to the line level signal from the
mixer, pre amplifier or other source. If there
is no sound, check that all of the electronics
are on, the signal routing is correct, the
source is active, the volume is on and so on.
Fuse
Carefully remove the fuse holder from the
power cord input with the use of a flat head
screwdriver. Inspect the fuse for any
damage. Blown fuses will typically show a
smoke-like blackening on the inside of the
glass. If this is the problem, replace the fuse
with a 4A/250V, 20mm x 5mm fuse.
Only replace this fuse with the same type
and rated fuse to reduce the risk of fire.
2. Poor low-frequency Speakers wired
response out-of-polarity
When two speakers are connected out
of polarity (out of phase), the low frequencies
will cancel each other acoustically. Carefully
observe the wire markings or tracers on your
full-range speaker wires. Verify that their
amplifier (+) terminal is connected to the red
speaker terminals and their amplifier (-)
terminal is connected to the black speaker
terminals.
3. Intermittent output Faulty
Check the low-level signal cable/XLR
connector to make sure that it has been
pushed all the way into the ‘Low Level In’
amplifier panel jack. If crackling persists,
remove the signal cable from the amplifier
and its low-level signal source and check for
a faulty connection between the connector
and the cable. Make sure that all of the
terminals on cable connectors have been
properly soldered.
such as crackling or
distortion
connection/wiring
If these suggestions do not solve your problem, contact your nearest Electro-Voice
dealer or Electro-Voice distributor.
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Appendix E: Technical
Specifications
Frequency Response (-10 dB):
Max Calculated SPL1 @ 1M:
LF Amplifier Power:
42 Hz – 160 Hz
126 dB
650W 50ms Burst, 300W
Continuous
Line Input Sensitivity:
LF Transducer:
-12 dBu to 0 dBu for Full Output
12” (300 mm) High-Excursion Dual
Voice-Coil
Connectors:
Line Inputs:
Balanced Outputs:
XLR
XLR
Power Requirement:
Enclosure Material:
Included Accessories:
Dim (H x W x D):
110-130 VAC, 50-60 Hz
MDF, Steel Fastener Reinforced
Mounting Bracket and Hardware
16.25" x 23.0" x 12.0"
(412 mm x 584 mm x 305 mm)
Net Weight:
49.0 lbs (22.2 kg)
1 1/8 Space (Corner Mounting) @ 1 Meter
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Notes
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U.S.A. and Canada:
For customer orders, contact the Customer Service department at:
800/392-3497 Fax: 800/955-6831
For warranty repair or service information, contact the Service Repair Department at:
800/685-2606
For technical assistance, contact Technical Support at:
866/78-AUDIO
Specifications subject to change without notice.
All Other International Locations:
952-884-4051 Fax: 952-736-4212
Printed in U.S.A
© Telex Communications, Inc. 2/2003
Part Number 38110-199 Rev A
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