Electro Voice Speaker EVID User Manual

EVID  
Ceiling  
Speaker  
Systems  
Installation and Operation Manual  
 
Welcome/Important Features  
Welcome  
Important Features  
• Matches acoustically to the EVID surface-  
Thank you for purchasing EVID™ Ceiling Series  
loudspeakers. Read through this manual to  
familiarize yourself with features, applications,  
and precautions before you use these products.  
EVID Ceiling Series loudspeakers use innova-  
tive design and materials to provide premium-  
level performance in a flush-mount ceiling for-  
mat. Four models comprise the EVID Ceiling  
Series: the C4.2 with a 4-inch LF driver and a  
.75-inch, titanium-coated tweeter with wave-  
guide; the C8.2 with an 8-inch LF driver and a  
1-inch titanium-coated tweeter with waveguide;  
the C8.2HC with a fully waveguide-loaded 8-  
inch LF driver and a 1-inch titanium coated  
tweeter; and the EVID 10.1, a true ceiling-mount-  
ed subwoofer designed to augment and extend  
the full-range model’s low-frequency response.  
mount speaker line  
• Model for model, has superior performance  
to competing brands  
• Comes with both 70V/100V or 8-ohm opera-  
tion standard on every model  
• Includes all installation accessories  
commonly needed for most jobs  
ATTENTION: UL SAFETY LISTING  
All EVID ceiling speaker models are list-  
!
ed under UL standard UL1480 as a signaling  
speaker.The EVID models C8.2, C8.2LP,  
C8.2HC and C10.1 models are also suitable for  
use in air handling spaces per UL2043.  
The EVID C4.2 is not UL listed for use in air  
handling spaces.  
EVID™ Ceiling Series Installation and Operation Manual  
 
1
Model Summary/Packing List  
EVID™ C4.2  
Packing List (Figure 1)  
Perfect for conventional rooms. It has excellent  
bandwidth in an esthetically very unobtrusive  
installation profile. Its compact design fits in  
tight areas. Its 4-inch woofer and waveguide-  
coupled, titanium-coated dome tweeter give  
smooth, wide frequency response.The enclo-  
sure is ported and tuned to provide surprising  
bass response in such a compact package.  
Features an easy 3-point mounting system for  
quick installations.  
Figure Quantity  
Part  
A
B
C
D
E
F
G
H
I
2
4
2
2
1
4
2
1
1
2
Speaker system  
Tile rails  
C-ring support  
Grille  
Owner’s manual  
Support ring screws  
Terminal connector  
Service center card  
Cutout template  
Paint Shield  
EVID C8.2  
The C8.2 has a specially tuned enclosure and 8-  
inch woofer to provide amazing bass response.  
The 1-inch waveguide-coupled tweeter give  
smooth controlled coverage out to 20 kHz. Perfect  
for installations where a flush-mount design is  
desired but demand for high-quality audio exists.  
Features a 4-point mounting system to make instal-  
lations fast and easy.  
J
EVID™ C8.2LP  
G (x2)  
A (x2)  
The C8.2LP is the same as the C8.2 but in a  
low-profile installation package. Ideal for tight  
ceiling spaces.  
H
E
EVID™ C8.2HC  
The EVID C8.2HC is ideal for high ceilings and  
reverberantproblemrooms.Its exclusive ported,  
waveguide-coupled,8-inch driver provides excel-  
lent intelligibility and definition.The 8.2HC’s  
patent-pending design provides great coverage  
control throughout the voice range and above.No  
other ceiling speaker system provides the combi-  
nation of excellent pattern control, wide band-  
width,high power handling,and compact design  
like the C8.2HC.  
C (x2)  
D (x2)  
F (x4)  
I
B (x4)  
EVID™ C10.1  
J (x2)  
The C10.1 packs a 10-inch subwoofer in a tuned  
high performance enclosure to give amazing  
low frequency performance down to 45Hz! It is  
one of the few quick-mount ceiling TRUE sub-  
woofers available. Flexible installation and pow-  
erful low-end performance make it the ideal  
mate to any EVID ceiling model.  
Figure 1: EVID packing list  
2
EVID™ Ceiling Series Installation and Operation Manual  
 
Product Feature Identification  
EVID™ Ceiling Series Systems (sold in pairs)  
Model  
C4.2  
Part No.  
Description  
301258000 4" coaxial speaker with horn-loaded, Ti-coated tweeter  
301261000 8" coaxial speaker with horn-loaded, Ti-coated tweeter  
C8.2  
C8.2LP 301318000 Same as C8.2 above except with low-profile backcan  
C8.2HC 301262000 8" waveguide-coupled* coaxial speaker with horn-loaded, Ti-coated tweeter  
C10.1  
301263000 10" High performance subwoofer  
*Patent pending  
EVID Series Ceiling Mount Speaker Accessories  
Model  
RR-42  
Part No.  
Description  
301305000 Rough-in plate for new construction involving the EVID C4.2  
(package of 4)  
RR-82  
301306000 Rough-in plate for new construction involving the EVID C8.2  
and C8.2LP (package of 4)  
RR-810 301307000 Rough-in plate for new construction involving the EVID C8.2HC  
and C10.1 (package of 4)  
RPK-42 301308000 Rough-in package for new construction involving the C4.2 speaker  
only (package of 2)  
RPK-82 301309000 Rough-in package for new construction involving the C8.2  
and C8.2LP speaker only (package of 2)  
RPK-810 301310000 Rough-in package for new construction involving the C8.2HC  
and C10.1 speaker only (package of 2)  
Product Feature Identification  
Steel  
Removable input terminal connector  
backcan  
Seismic tab  
(auxiliary support ring)  
Strain relief fitting  
Terminal cover plate  
Grille safety tether  
Grille  
Tap  
selector  
Mounting  
screws  
Grille safety  
tether hole  
Rotating mounting tabs  
Figure 2: Bottom of speaker  
Figure 3: Top of speaker  
EVID™ Ceiling Series Installation and Operation Manual  
 
3
Installation and Wiring  
The EVID™ mounting system has been  
designed so that, if necessary, the installation can  
be done from beneath the ceiling. In some cases  
with a suspended ceiling grid, however, it may  
be easier to access from both the top and bot-  
tom of the ceiling tile during the installation  
process.Typical installation hardware needed for  
either suspended ceilings or sheetrock ceilings is  
included.The ceiling speaker assembly is held in  
place by mounting tabs that securely grip the  
ceiling material. Input wiring is attached to a  
removable terminal block connector that can be  
pre-wired if necessary before speaker installation  
to speed up the installation process.  
Figure 4: Speaker mounting plate  
RPK Series Kits  
The RPK series rough-in kit contains a RR series  
plate with a standard 2 gang electrical box  
mounted on the top with an attached short  
length of flexible conduit which connects to the  
ceiling speaker conduit clamp on the speaker’s  
rear terminal cover.This accessory allows for rigid  
conduit to be run to the box on the rough-in  
plate before the speaker or any sheetrock is  
installed.After the sheetrock is installed the speak-  
er can be wired up and mounted all from below  
the ceiling.The RPK mount system is shown in  
Figure 5.  
INSTALLATION NOTE: USE OF OPTIONAL  
ROUGH-IN ACCESSORIES  
For most installations, no additional hardware is  
needed. However, a two-step installation proce-  
dure that is sometimes used for installation into  
sheetrock ceilings can be made easier by the  
use of the optional RR and RPK series of rough-  
in accessories before the ceiling material is  
installed.The rough-in accessories provide a  
cutout guide when many holes are to be made  
in a production-line style installation and to  
ensure the speakers are positioned correctly as  
the holes are cut in the sheetrock. Depending  
on the requirements, two types of rough-in  
accessories are available.  
RR Series Mounting Plates  
RR series plates are made of flat sheet metal with  
holes to attach to the joists or trusses of a build-  
ing structure.The holes are drilled for nails or  
screws at 16 inches (406 mm), 20 inches (508  
mm) and 24 inches (610 mm) on-center.The  
installer can drill other holes as needed up to a  
maximum of 24-3/4 inches (630 mm) apart.The  
sheetrock installs over the plate, and the plate pro-  
vides a template for a blind cutout of the hole in  
the sheet rock.The ceiling material is generally  
cut with a router-type cutting tool, using the plate  
ring as a cutout guide.The mounting plate is illus-  
trated in Figure 4.  
Figure 5: RPK mounting system  
INSTALLATION NOTE: CONTROLLING  
VIBRATION  
Because of their high performance, EVID ceiling  
loudspeakers can generate substantial vibration,  
which can cause buzzing in loose sections of  
the ceiling structure. Depending on the charac-  
ter of the ceiling tile and related components,  
dampening material may need to be used under  
the tile rails or the edges of the tiles to eliminate  
rattles.  
4
EVID™ Ceiling Series Installation and Operation Manual  
 
Installation and Wiring  
INSTALLATION NOTE: TILE RAILS AND  
C-RING  
Step 1: Cut the Hole (Figure 6)  
For suspended tile or sheetrock ceilings, cut  
out the hole either 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.  
Each speaker comes with two tile rails which are  
designed to fit 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 pre-punched 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 pre-  
vents the speaker assembly from falling.  
Figure 6: Cut ceiling hole  
Always use all included support hardware  
when installing into suspended ceiling tiles to  
make sure the installation is secure.  
Step 2: Install C-Ring and/or Tile  
Rails (Figure 7)  
All EVID speakers come packaged with two  
types of backing hardware: a C-ring and two tile  
rails.  
For sheetrock ceiling installations, the C-ring  
should be used by itself 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.  
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 7. 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  
7.  
Step 3: Attach Wiring to the  
Terminal Connector (Figure 8)  
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.  
INSTALLATION NOTE: CONNECTOR  
Figure 7: Secure rails to C-Ring  
Figure 8: Tighten with screwdriver  
EVID™ Ceiling Series Installation and Operation Manual  
 
5
Installation and Wiring  
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.  
Two possible layouts for wiring a group of speak-  
ers are described below.  
C10.1 Subwoofer  
C4.2 Loudspeaker  
1.Wiring in parallel. Connect the wire pair of  
the subsequent speaker to pins 2 and 3.When  
one input connector is removed, subsequent  
speakers will remain connected. See Figure 9.  
2. Daisy-chaining. 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  
10.  
Figure 11: Subwoofer polarity with C4.2  
INSTALLATION NOTE: SUBWOOFER  
POLARITY  
C10.1 Subwoofer  
C8.2/C8.2HC/C8.2LP  
Loudspeaker  
Figure 12: Subwoofer polarity with  
C8.2/C8.2HC/C8.2LP  
From amplifier or  
previous speaker  
To next speaker  
When all wiring has been completed to the  
connector, plug the connector into the socket in  
the speaker’s terminal cup. See Figure 13.Tighten  
all screws to eliminate vibration.  
Figure 9: Parallel wiring  
Input connector  
Horizontal  
screw  
From amplifier or  
previous speaker  
To next speaker  
Hold-down  
screw  
Terminal  
block  
Strain  
relief  
Figure 10: Daisy-chain wiring  
screws  
When adding a subwoofer,be sure to observe the  
correct polarity.The C10.1 subwoofer has been  
designed for optimum performance when used  
with the C4.2. In order to maximize the low fre-  
quency output when used with the C8.2, C8.2LP  
or C8.2HC, the polarity of the C10.1 subwoofer  
should be reversed. See Figures 11 and 12.  
Figure 13: Plug connector into socket  
Step 4: Secure the Cable to the  
Speaker (Figure 14)  
Fully loosen the horizontal screw shown in Figure  
13, then the strain relief screws. Run the wires  
through the opening in the fitting and plug the  
input connector into the speaker’s terminal block.  
Then tighten the strain relief fitting as follows:  
1. If plenum cable is used, slide the wiring  
6
EVID™ Ceiling Series Installation and Operation Manual  
 
Installation and Wiring  
through the strain relief fitting on the terminal  
cover plate (Figure 14). Hold the strain relief fit-  
tings tight around the cable.Tighten the strain  
relief screws first, 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.  
INSTALLATION NOTE: CEILING TILE  
CAUTION  
When mounting the units into 2'˘2' or 2'˘4' sus-  
pended ceiling tiles, DO NOT install them in  
lightweight fibreglass-type tiles without full sec-  
ondary support for the speaker as noted in Step  
6. Such tiles are not designed to support any  
substantial weight. Speaker installation without  
secondary support will cause the tile to sag and  
distort, even with the tile bridge installed.The  
secondary support line at the rear of the speak-  
er MUST be strung taut in these situations and  
MUST remove most of the force of the speaker  
on the tile to ensure that the speaker does not  
deform the tile.  
2. If the installation used flexible (BX) or rigid  
Step 5: Mount the Speaker Into  
the Ceiling (Figure 16)  
Push the speaker into the ceiling hole until the  
front baffle rim is flush  
with the ceiling.  
Figure 14: Secure cable through fitting  
Tighten the mounting  
tabs by turning the  
(EMT) conduit, an alternate conduit fitting can  
be used. See Installation Note and Figure 15  
below.  
screw clockwise until  
the speaker is secure.  
Please note that the  
first clockwise quarter-  
turn rotates the attach-  
ment tabs outward.The  
remaining turns tighten  
the tabs down onto the  
back of the ceiling sur-  
face (see Figure 17).  
Figure 16: Mount  
speaker into ceiling  
Figure 15: Alternate conduit fitting  
INSTALLATION NOTE: ALTERNATE  
CONDUIT FITTINGS  
Some cases require alternate fittings, many of  
which are available through most electrical sup-  
pliers. Simply remove the existing fitting  
by unscrewing the two hold-down screws, expos-  
ing a 7/8-inch (22 mm) knockout hole.Then  
install the alternate fitting. Make sure to always  
use a listed fitting in accordance with your area’s  
building codes and regulations.  
Figure 17: Tighten mounting tabs  
EVID™ Ceiling Series Installation and Operation Manual  
 
7
Installation and Wiring  
INSTALLATION NOTE: MOUNTING TABS  
EVID™ C4.2, C8.2 and C8.2LP  
For each attachment screw, first turn one half-  
turn counterclockwise to release the mounting  
tab from its guide.  
In addition to the 8-ohm setting,the power taps are  
30 W,15 W,7.5 W,and 3.7 W at both 70.7V and  
100V,with a 1.8 W tap for 70.7V only.  
EVID™ C8.2HC and C10.1  
In addition to the 8-ohm setting, the power taps  
are 60 W, 30 W, and 15 W at both 70.7V and  
100V, with a 7.5 W tap for 70.7V only.  
Step 6: Connect an Auxiliary  
Support Line (Figure 18)  
Note the support ring on the back of the speak-  
er.The ring allows for connection to a inde-  
pendent and secure anchor point. Construction  
codes often require the use of this secondary  
support point.  
Step 8: Attach the Grille (Figure 20)  
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 push-  
ing the grille fastener into the hole in the front  
of the baffle (see Figure 20). Second, press the  
grille into place until the front of the grille is  
flush with the rim of the baffle. Make sure the  
grille is securely seated to prevent it from  
vibrating loose.  
Figure 18: Attach auxiliary support line  
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.  
Step 7: Adjust Tap Selector  
(Figure 19)  
The tap selector switch is located on the front  
baffle.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 final speaker  
audio level balance adjustments are to be made  
later.After the levels are adjusted the grilles can  
then be installed.  
1
2
Figure 19: Adjust tap selector (left:  
C4.2/C8.2/C8.2LP; right: C10.1/C8.2HC)  
Figure 20: Attach the grille  
8
EVID™ Ceiling Series Installation and Operation Manual  
 
Appendix A — Painting the Speaker  
If the speaker is installed in an area where the  
interior design requires a color match, these  
speakers are simple to paint.The speakers 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.  
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 21.  
180˚  
45˚  
45˚  
Baffle  
180˚  
Can  
(do not  
paint)  
Figure 21: Spray-painting angles  
If you are painting the grille also, you must  
first 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 qual-  
ity 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 to mask the drivers and internal baffle,  
paint the speaker, then remove the shield.  
EVID™ Ceiling Series Installation and Operation Manual  
9
 
Appendix B — System Design Guide  
systems,at least in part because they represented  
Selecting and Positioning  
Ceiling Loudspeakers  
the traditional choice.EVID systems,however,  
allow for far more flexible options.  
Several key criteria determine the type and  
quantity of ceiling speakers to employ in a job.  
Specific EVID™ Ceiling Series models accom-  
modate each job, depending on how these cri-  
teria are specified.  
In many cases,you can achieve excellent  
results — at a significant savings — by using 4-  
inch transducers.This is especially true in jobs  
that do not require extended low-end response or  
high SPL levels.4-inch transducers,such as those  
used in the C4.2,offer wider dispersion to allow  
for fewer speakers to be employed in the job.For  
example,due to its smaller cone diameter, the  
C4.2 exhibits significantly wider dispersion (130  
degrees) than the C8.2 (110 degrees) at the -6 dB  
points.  
• Room size  
• Coverage density desired  
• Coverage angle specification of the speaker  
• Ceiling height  
• Audio program material being played  
The information below, and the free design  
program downloadable from  
The effect of this characteristic on an overhead  
system is indicated in Figure 23.In replacement  
applications where existing speaker positions are  
used, the C4.2 (shown in angle A) offers greater  
overlap and,thus,more uniform coverage than an  
older conventional 8-inch unit (shown in angle  
B).When specifying a new system,you can take  
advantage of the C4.2’s wider dispersion to  
decrease the number of speakers required to  
Ceiling  
www.electrovoice.com (under downloads/speak-  
ers), will help you optimize your EVID design.  
In the traditional approach to overhead-  
distributed systems, loudspeakers are placed in a  
grid whose dimensions are dictated by the room  
height and the directivity of the speaker ele-  
ments.Two basic placement patterns prevail:  
square spacing and hexagonal (or crisscross)  
spacing. See Figure 22.  
Grid  
Edge-to-edge Minimum Center-to-  
overlap center  
A
B
A
B
Figure 23: Size vs. coverage  
cover a given area.This will result in even greater  
savings.  
Figure 22: Coverage patterns  
Of course, the C4.2 is somewhat less sensitive  
than the 8-inch C8.2.The difference is  
In addition to the spacing pattern, the  
designer must choose between three coverage  
density types, designated respectively as edge-  
to-edge, minimum overlap and center-to-center.  
The greater the overlap, the more uniform the  
coverage.The illustration below shows these  
various layout patterns.  
–5 dB.The C4.2 will also have slightly reduced  
low-frequency capabilities below 65 Hz.  
However, neither of these factors is a significant  
problem in many distributed systems.The C4.2 is  
conservatively rated to handle 80 watts of con-  
tinuous power equal to or greater than most  
other brands of 8-inch units, so its continuous  
SPL output will be more than adequate.  
Moreover, its low-frequency output can easily be  
augmented with the addition of the C10.1 sub-  
woofer. For these reasons, the C4.2 represents a  
great way for you to provide good audio cover-  
Ceiling Systems: Size vs.  
Coverage  
In the past, system designers usually specified 8-  
inch cone loudspeakers for distributed overhead  
10  
EVID™ Ceiling Series Installation and Operation Manual  
 
Appendix B — System Design Guide  
age while maintaining a competitive edge in  
Use of Subwoofers  
price quotes in installations that do not need the  
extended performance of the larger models.  
The C10.1 subwoofer can add considerable  
low-frequency performance to any EVID instal-  
lation. It is important to note that the C10.1  
subwoofer depends on the ceiling and walls to  
properly load itself and to reinforce its bass out-  
put. Correct positioning is important to get  
maximum impact.  
Reverberant Rooms  
and High Ceilings  
Situations arise, however, in which controlled  
coverage is more desirable than broad disper-  
sion.Very large live spaces such as gymnasi-  
ums, convention centers, shopping mall atri-  
ums, and the like all benefit from more con-  
trolled sound projection. In such installations,  
the EVID 8.2HC is the best choice. Its 75-  
degree coverage pattern above 1kHz provides  
more intelligibility in large, acoustically live  
spaces. It also has a high 93dB sensitivity rating  
for optimum efficiency.  
In smaller rooms when a single C10.1 is  
used, a center or near-center position is best.  
This gives the most even coverage. For larger  
rooms where more than one C10.1 are  
employed, the added effect of the room’s walls  
can be used. In such a space, position the sub-  
woofers evenly throughout the room and a few  
feet from the wall or corners.The added load-  
ing of the walls will enhance the response in  
these larger areas.  
SPL Requirements: How Loud?  
The EVID C8.2 is a great speaker to use when  
higher SPL is required.The fidelity and band-  
width of the unit is substantial and is ideal for  
applications requiring high quality foreground  
music reproduction.The C8.2 has substantial  
low frequency energy down below 60Hz.This  
is more than sufficient for most applications.  
Layout: How Many?  
The chart below shows the effective coverage  
diameter of the EVID models assuming a 4-foot  
listening plane height. Using these figures you  
can lay out a coverage pattern for the job after  
deciding the overlap criteria described earlier  
on page 10.  
Coverage Diameter by Ceiling Height  
Model  
C4.2  
8'  
12'  
34'  
23'  
12'  
20'  
68'  
45'  
24'  
24'  
85'  
57'  
30'  
17'  
11.5'  
C8.2  
C8.2HC 6.5'  
C10.1  
180° coverage  
EVID™ Ceiling Series Installation and Operation Manual  
 
11  
Appendix C — Troubleshooting Table  
Troubleshooting Table  
Problem  
Possible Causes Action  
No output  
Amplifier Make sure the amplifier channel is being fed an input  
signal (preferably via a “signal input” indicator on the  
amp).  
Check that the amplifier channel’s volume is turned up.  
Connect the speaker and cable, which had no output  
to another amplifier channel, making sure an input  
signal is fed to the new amp channel. If you then get  
output, the problem was the amplifier 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 amplifier.  
Questionable or Faulty connection Check all cabling for proper connector contact. A bad  
intermittent out-  
put such as  
crackling  
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  
amplifier chosen.  
Constant noise  
A faulty electronic Since loudspeakers cannot generate these sounds by  
such as buzzing, device in the  
themselves, you may have a faulty electronic device in  
the signal chain.  
hissing, or  
humming  
signal chain  
Poor system  
grounding  
Check and correct the system grounding, as required.  
Poor low-  
frequency  
output  
Out-of-polarity  
hookup between  
When two speakers are hooked up out of polarity (out  
of phase), the low frequencies cancel each other out.  
multiple speakers Try reversing the polarity of one of the speakers either  
by turning around a dual-banana plug at the amplifier  
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 below solves your problem, contact your nearest EV© service center  
or EV distributor.  
12  
EVID™ Ceiling Series Installation and Operation Manual  
 
Appendix D — Warranty  
Incidental and Consequential  
Damages Excluded  
Uniform Limited Warranty  
Electro-Voice® speakers and speaker systems  
are guaranteed against malfunction due to  
defects in materials or workmanship for a peri-  
od 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  
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 limita-  
tion or exclusion may not apply to you.  
improperly mounted or installed enclosures. If a  
covered malfunction occurs during the warran-  
ty period, the product will be repaired or  
replaced (at our discretion) without charge.The  
product will be returned to the customer pre-  
paid.Additional details are included in the  
Uniform Limited Warranty statement.  
Other Rights  
This warranty gives you specific legal rights,  
and you may also have other rights which vary  
from state to state.  
Exclusions and Limitations  
Maintenance  
The Limited Warranty does not apply to: (a)  
exterior finish or appearance; (b) certain specif-  
ic items described in the individual product-  
line statements below, or in the individual prod-  
uct 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 result-  
ing 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.  
No maintenance is required when installed in  
accordance with installation and wiring guide-  
lines described in this manual.  
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 rep-  
resentatives, 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.  
EVID™ Ceiling Series Installation and Operation Manual  
 
13  
Appendix E — Product Specifications  
16  
EVID™ Ceiling Series Installation and Operation Manual  
 
EVID™ Ceiling Series Installation and Operation Manual  
 
17  
Notes  
18  
EVID™ Ceiling Series Installation and Operation Manual  
 
Notes  
EVID™ Ceiling Series Installation and Operation Manual  
19  
 
America  
USA: Telex Communications Inc. 12000 Portland Ave South, Burnsville, MN 55337, USA, Phone: 952-884-4051, Fax: 952-884-0043  
Canada (East): Acoustik GE Inc. 5715 Kincourt, Montréal, PQ H4W 1Y7, Canada, Phone: 866-369-2864, 514-369-2864, Fax: 514-487-9525  
Canada (Ontario): HEK Marketing Inc. 27 Fearn Crescent, Ajax, ON L1S 5L7, Canada. Phone: 800-494 6770, Fax 905-619-0366  
Canada (West): KMT Pro Audio. 04-301 Nassau Street North, Winnipeg, MB R3L-2J5, Canada, Phone: 888-850-8811, Fax: 204-489-7614  
Mexico: Telex de Mexico S.A. de C.V., Av. Parque Chapultepec 66-202, Col. El Parque, Edo. de Mexico, Phone:+52 (55) 5358-5434, Fax:+52 (55) 5358-5588  
Latin America: Telex Communications Inc. 12000 Portland Ave South, Burnsville, MN 55337, USA, Phone: 952-887-5532, Fax: 952-736-4212  
Europe, Africa & Middle-East  
Germany: Telex EVI Audio GmbH. Hirschberger Ring 45, D 94315, Straubing, Germany, Phone: +49 9421-706 0, Fax: +49 9421-706 265  
France: EVI Audio France S.A. Parc de Courcerin, Allée Lech Walesa, F 77185 Lognes, France, Phone: +33 1-6480-0090, Fax: +33 1-6006-5103  
UK: Telex Communications Ltd. 4, The Willows Centre, Willow Lane, Mitcham, Surrey CR4 4NX, UK, Phone: +44 208 646 7114, Fax: +44 208 640 7583  
Africa & Middle-East: Telex EVI Audio GmbH. Hirschberger Ring 45, D 94315, Straubing, Germany, Phone: +49 9421-706 0, Fax: +49 9421-706 265  
Asia & Pacific Rim  
Japan: EVI Audio Japan Ltd. 5-3-8 Funabashi, Setagaya-Ku, Tokyo, Japan 156-0055, Phone: +81 3-5316-5020, Fax: +81 3-5316-5031  
Australia: EVI Audio (Aust) Pty Ltd. Slough Business Estate, Unit 23, Silverwater, N.S.W. 2128, Australia, Phone: +61 2-9648-3455, Fax: +61 2-9648-5585  
China: EVI Audio (HK) Ltd. 7th Floor China Minmetals Tower, No. 79 Chatham Road South, Tsim Sha Tsui, Kowloon, HK, Phone: +852 2351-3628, Fax: +852 2351-3329  
Singapore: Telex Pte. Ltd. 3015A Ubi Road 1, 05-10 Kampong Ubi Industrial Estate, Singapore 408705, Phone: +65 6746-8760, Fax: +65 6746-1206  
© Telex Communications, Inc. 07/2003  
Part Number 38110-143  
Rev. D — 1.4.2006  
 

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