Electro-Voice C12.2 User Manual

EVID C12.2 User Manual

EVID C12.2 Ceiling Speaker Installation and Operations Manual

2

Safety First

Suspending any object is potentially dangerous and should only be attempted by
individuals who have a thorough knowledge of the techniques and regulations of
suspending objects overhead. Electro-Voice strongly recommends all loudspeakers be
suspended taking into account all current national, federal, state, and local laws and
regulations. It is the responsibility of the installer to ensure all loudspeakers are safely
installed in accordance with all such requirements. When loudspeakers are suspended,
Electro-Voice strongly recommends the system be inspected at least once per year or as
laws and regulations require. If any sign of weakness or damage is detected, remedial
action should be taken immediately. The user is responsible for making sure the wall,
ceiling, or structure is capable of supporting all objects suspended overhead. Any hardware
used to suspend a loudspeaker not associated with Electro-Voice is the responsibility of
others.

Table of Contents

Safety First ............................................................................................................................2

Packing List ...........................................................................................................................3

EVID C12.2 Models ...............................................................................................................4

Product Feature Identication................................................................................................4

Open Ceiling Installation........................................................................................................5

Ceiling Tile Installation ...........................................................................................................6

Step 1 - Cut the Hole .....................................................................................................6

Step 2 - Install C-Ring and Tile Rails .............................................................................6

Step 3 - Attach Wiring to the Terminal Connector .........................................................7

Step 4 - Secure the Cable to the Speaker .....................................................................9

Step 5 - Mount the Speaker into the Ceiling ................................................................10

Step 6 - Connect a Safety Support Line ......................................................................10

Step 7 - Adjust Tap Selector .........................................................................................11

Step 8 - Attach the Grille ..............................................................................................11

Appendix A - Painting the Speaker ......................................................................................12

Appendix B - Troubleshooting .............................................................................................13

Appendix C - Specications.................................................................................................14

Caution!

The seismic tab (auxiliary support ring) is not intended for primary suspension
of the loudspeaker. The seismic tab should only be used as a secondary safety
point.

Caution!

Ceiling mount speaker’s safety cable
The safety cable should be installed with a minimum of 3-inches (76.2 mm) of
slack.

EVID C12.2 Ceiling Speaker Installation and Operations Manual

3

Packing List

Figure 1: EVID C12.2 Packing List

A

C

D

E

B

F

G

I

J(x2)

H(x2)

Figure Quantity Part

A 1 Speaker System

B 1 Grille

C 1 Owner’s Manual

D 1 Terminal Connector

E 1 Warranty Card

F 1 Ceiling Cutout Template

G 1 Paint Shield

H 2 Tile Rails

I 1 C-Ring Support

J 2 Support Ring Screws

EVID C12.2 Ceiling Speaker Installation and Operations Manual

4

EVID C12.2 Models

Figure 2: Bottom of Speaker

Product Feature Identication

Figure 3: Top of Speaker

Model Part No. Description

EVID C12.2 Integrated 12-inch ceiling mount speaker

Steel

Backcan

Tap

Selector

Mounting Tab

Screws (x4)

Seismic Tab

Removable Input

Terminal Connector

Strain Relief Fitting

Terminal Cover Plate

Grille Safety

Tether

Rotating Mounting

Tabs (x4)

Grille

Pendant

Mount

Tabs (x3)

3/8” Threaded

Rigging Point

EVID C12.2 Ceiling Speaker Installation and Operations Manual

5

Open Ceiling Installation

The EVID C12.2 must be suspended from the back of the can in both open ceiling and
ceiling tile applications, using either the three (3) pendant mount tabs or the 3/8” threaded
rigging point. To prevent rattles, rotate the four (4) mounting tabs towards the can, then
tighten the mounting tab screws.

The seismic tab may be used in addition to the pendant mounts as a redundant safety
point.

Figure 4a: Pendant Mount Suspension

Pendant Mount

Tabs (x3)

Seismic Tab

Figure 4b: 3/8” Threaded Rod Suspension

3/8” Nut

(Loctite Applied)

Threaded Rod

Rigging Plate with

Integrated Nut

(Loctite Applied)

EVID C12.2 Ceiling Speaker Installation and Operations Manual

6

Ceiling Tile Installation

Step 1: Cut the Hole

Cut out the hole by tracing the cardboard template or with a circular cutter set to the
appropriate cutout size. If the wire has been pre-installed, pull the wiring through the cutout
hole.

Figure 5: Cut Ceiling Hole

Step 2: Install C-Ring and Tile Rails

For suspended ceiling installations, insert the C-ring through the hole cut in the ceiling tile.
Place the C-ring around the hole with the tabs located as shown in Figure 6. Insert the tile
rails through the cut hole in the ceiling tile. Snap the two rails into the two tabs in the C-ring
and align the rails so that the ends extend OVER the T-channel grid on the side of the tile.
Secure the rails onto the C-ring tabs by inserting a screw though each tab into the rail, as
shown in Figure 6.

Figure 6: Secure Rails to C-Ring

EVID C12.2 Ceiling Speaker Installation and Operations Manual

7

Step 3: Attach Wiring to the Terminal Connector

Insert the bare end of wire into the appropriate connector terminals as described below and
screw down the hold-down screw until tight, using a small screwdriver.

Figure 7: Tighten with Screwdriver

Installation Note: Tile Rails and C-Ring

The tile rail accessory is designed to t either standard 24-inch-wide or

600-mm-wide tiles. It is important to note that the tile rail pieces do not
actually attach to the T-grid struts.The ends of the rails sit OVER the

T-grid strut. Normally, the tile supports the rails. The tile rails are pre­punched at regular intervals with holes along their length.This allows the C-ring to be
positioned at any point along the rail. If the tile comes out or falls apart, the ends of
the support rails fall onto the T-grid, which prevents the speaker assembly from falling.
Always use all included support hardware when installing into suspended ceiling tiles
to make sure the installation is secure. For sheetrock ceiling installations, the tile rail
is not needed, but the C-ring should be used to reinforce the ceiling material and to
spread out the pressure from the speaker hold-down tabs. Guide the C-ring through
the cut hole in the ceiling, and place it on the back side of the hole before inserting the
speaker.

Screwdriver

Installation Note: Ceiling Tile Caution

When mounting the C12.2 into 2’x2’ or 2’x4’ suspended ceiling tiles or

sheetrock ceilings, DO NOT install the C12.2 without using either the 3/8”

threaded rod rigging point or the pendant mounts. Ceiling tiles are not

designed to support any substantial weight and will cause the tile to sag

and distort, even with the tile bridge installed. If the cables are used, they
MUST be strung taut. The threaded rod or cables MUST support most of the weight of
the speaker to ensure that the C12.2 does not deform the ceiling.

EVID C12.2 Ceiling Speaker Installation and Operations Manual

8

Installation Note: Connector Wiring Guidelines

The input connector’s 4 terminals are numbered and marked on the connector. Pins 1
and 2 are positive (+); pins 3 and 4 are negative (–). (Pin 1 is connected to Pin 2 and
Pin 3 is connected to Pin 4 inside the speaker.) Pins 1 and 4 are used as daisy-chain
connections to other loudspeakers.

For wiring in parallel, connect the wire pair of the subsequent speaker to pins 1
and 4. When one input connector is removed, subsequent speakers will also be
disconnected. See Figure 8.

When all wiring has been completed to the connector, plug the connector into the
socket in the speaker’s terminal cup. See Figure 9. Tighten all screws to eliminate
vibration.

Figure 9: Plug Connector into Socket

Figure 8: Parallel Wiring

From amplifier or
previous speaker

To next speaker

Input Connector

Hold-Down Screw

Terminal Block

Horizontal Screw

Strain Relief Screws

EVID C12.2 Ceiling Speaker Installation and Operations Manual

9

Step 4: Secure the Cable to the Speaker

Fully loosen the horizontal screw shown in Figure 9, then the strain relief screws. Run the

wires through the opening in the tting and plug the input connector into the speaker’s
terminal block. Then tighten the strain relief tting as follows:

If plenum cable is used, slide the cable through the strain relief tting on the terminal
cover plate (Figure 10). Hold the strain relief ttings tight around the cable. Tighten the
strain relief screws rst, then the horizontal screw. In the cases of insulated speaker wire

and plenum cable, it is often possible to provide acceptable strain relief force by simply
tightening the strain relief screws onto the terminal cover plate.

Figure 10: Secure Cable through Fitting

EVID C12.2 Ceiling Speaker Installation and Operations Manual

10

Step 5: Mount the Speaker Into the Ceiling

Push the speaker into the ceiling hole until the front bafe rim is ush with the ceiling.

Tighten the mounting tabs by turning the screw clockwise until the speaker is secure.

Please note that the rst clockwise quarter turn rotates the attachment tabs outward. The

remaining turns tighten the tabs down onto the back of the ceiling surface (see Figure 12).

Figure 11: Mount Speaker into

Ceiling

Figure 12: Tighten Mounting Tabs

Step 6: Connect a Safety
Support Line

Note the support ring on the back of the
speaker. The ring allows for connection to
an independent and secure anchor point.
Construction codes often require the use of
this secondary support point.

Figure 13: Attach Safety Support

Line

Installation Note: Mounting
Tabs

For each attachment screw, rst turn

one half turn counterclockwise to
release the counting tab from its guide.

Installation Note:

See Figures 4a and 4b for possible installation methods. If 3/8” threaded rod is to be
used in a ceiling tile installation, the threaded rod must be installed to the threaded
rigging point before installing into the ceiling.

EVID C12.2 Ceiling Speaker Installation and Operations Manual

11

Step 7: Adjust Tap Selector

The tap selector switch is located on the

front bafe. Adjust the speaker to the

appropriate tap setting before installing
the grille. In some 70V/100V constant
voltage installations it is advisable to leave

the grilles off if nal speaker audio level

balance adjustments are to be made later.
After the levels are adjusted the grilles can
then be installed.

Step 8: Attach the Grille

Figure 14: Adjust Tap Selector

Figure 15: Attach the Grille

Installation Note: Grille Safety
Feature

EVID grilles features a unique safety
tether to prevent the grille from falling
if the grille is removed or comes loose
after installation.

First, install the grille’s safety tether by
pushing the grille fastener into the hole

in the front of the bafe (see Figure 15).

Second, press the grille into place until

the front of the grille is ush with the rim of
the bafe. Make sure the grille is securely

seated to prevent it from vibrating loose. If
you need to remove the grille, the easiest
way is to insert two bent paper clips or
other pointed objects into holes in the
grille, then apply slow even pressure to
pull down on the grille until that section of
the grille comes out slightly. Continue the
same procedure around the perimeter of
the grille, loosening a portion at a time until
the grille is removed.

EVID C12.2 Ceiling Speaker Installation and Operations Manual

12

Appendix A - Painting the Speaker

If the speaker is installed in an area where the interior design requires a color match, the
EVID C12.2 is simple to paint. The speaker can accommodate almost any type of latex or
oil based paint. The bezel/rim can be painted before installation or after mounting into the
ceiling.

Figure 17: Spray-Painting Angles

45˚ 45˚

180˚

180˚

Baffle

Can
(do not
paint)

Figure 16: Installing Paint Shield

Before Painting

Painting Process

Clean the rim and grille with mineral spirits or
other light solvent. Do not use harsh solvents
such as gasoline, kerosene, acetone, or
other chemicals. If you use these cleaners
you may permanently damage the enclosure.
Also, don’t use abrasives products such as
sandpaper or steel wool. Either by rolling
or spraying, apply two or more thin coats of
paint. If you are spraying, hold the spray can
at the angles shown in Figure 17. If you are

painting the grille also, you must rst remove

the internal grille cloth. Spray painting is
strongly recommended. If the grille is rolled or
brush painted, the grille may become clogged
with paint and the sound quality will suffer.
After the paint has dried, replace the internal
grille cloth. If you wish to paint the speaker
along with the ceiling after installation, insert
a plastic or cardboard paint shield into the
front of the speaker (see Figure 16) to mask

the drivers and internal bafe, paint the

speaker, then remove the shield.

Paint

Shield

Speaker

EVID C12.2 Ceiling Speaker Installation and Operations Manual

13

Appendix B - Troubleshooting

Problem Possible Causes Action

No Output Amplier Make sure the amplier channel is being fed an

input signal (preferably via a “signal input” indicator
on the amp).

Check that the amplier channel’s volume is turned

up.

Connect the speaker and cable, which had no

output to another amplier channel, making sure

an imput signal is fed to the new ampl channel. If

you then get output, the problem was the amplier

channel. If not, then the problem may be in the
cable or speaker.

Speaker Cable(s) Replace the cable(s) connecting the loudspeaker

system and amplier.

Questionable
or Intermittent
Output such
as Crackling

Faulty Connection Check all cabling for proper connector contact. A

bad connection can result in intermittent contact or
dramatically increased resistance, which in turn can
cause reduced output or noises unrelated to the
signal.

Improper Power
Tap Setting

Check the power tap setting under the speaker
grille to ensure the setting is appropriate for the

installation and amplier chosen.

Constant
Noise such
as Buzzing,
Hissing or
Humming

A Faulty
Electronic Device
in the Signal
Chain

Since loudspeakers cannot generate these sounds
by themselves, you may have a faulty electronic
device in the signal chain.

Poor System
Grounding

Check and correct the system grounding, as
required.

Poor Low­Frequency
Output

Out-of-Polarity
Hookup Between
Multiple Speakers

When two speakers are hooked up out of polarity
(out of phase), the low frequencies cancel each
other out. Try reversing the polarity of one of the
speakers either by turning around a dual-banana

plug at the amplier or by reversing the tip/sleeve

leads on the jack. Whichever condition results
in greater low-frequency output is the in-polarity
condition.

If none of the suggestions solves your problem, contact your nearest Electro-Voice
service center or Electro-Voice distributor.

EVID C12.2 Ceiling Speaker Installation and Operations Manual

14

Appendix C - Specications

Dimensions

(Depth x Diameter):

333 mm x 414 mm
(13.12 in x 16.31 in)

Cutout Diameter: 386 mm (15.20 in)

Weight:12.3 kg (27.0 lb)

Cabinet Construction:

Powdercoated Steel Enclosure and UL94V-0 Rated Bafe

and Bezel

Transducer:

EVID 920-8B, 12 in. (305 mm) High-Efciency Coaxial

Driver

Mounting System:

Integrated 4-Point Toggle Anchors, Integrated 3-Point
Pendant Mount, Additonal Secondary Mount

Available Colors:White Bafe (Paintable Surface) with Black Rear Can

Grille Construction: Powder Coated Steel with Safety Tether

Acoustic Design:

Ported Cabinet, Two-Way Design, Internally Damped,
Passive Crossover, 64W Transformer with ASC

Frequency Response: 75 Hz - 20 kHz

Power Handling (8 ohms): 100W RMS

Power Handling (70V): Up to 64W

Power Handling (100V): Up to 64W

Sensitivity (SPL 1W/1m):100 dB

Input Conguration: 8 Ohm; 70V/100V

70V Power Taps: 4W, 8W, 16W, 32W, 64W

100V Power Taps: 8W, 16W, 32W, 64W

Accessories: Tile Bridge, Mounting Ring

EVID C12.2 Ceiling Speaker Installation and Operations Manual

15

Figure 18: Dimensions

Specications (continued)

Bosch Security Systems, Inc

12000 Portland Avenue South
Burnsville MN 55337
USA

www.electrovoice.com

© Bosch Security Systems, Inc, 2015

2015.09 | 04 | F.01U.317.227