Telex Speaker EVID Ceiling Speaker Systems User Manual

EVID  
Ceiling  
Speaker  
Systems  
Installation and Operation Manual  
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Welcome/Important Features  
Welcome  
Important Features  
Thank you for purchasing EVID™ Ceiling  
Series loudspeakers. Read through this man-  
ual to familiarize yourself with features,  
applications, and precautions before you use  
these products.  
• Matches acoustically to the EVID surface-  
mount speaker line  
• Model for model, has superior perform-  
ance to competing brands  
• Comes with both 70V/100V or 8-ohm  
operation standard on every model  
• Includes all installation accessories  
commonly needed for most jobs  
EVID Ceiling Series loudspeakers use  
innovative design and materials to provide  
premium-level performance in a flush-mount  
ceiling format. Four models comprise the  
EVID Ceiling Series: the C4.2 with a 4-inch  
LF driver and a .75-inch, titanium-coated  
tweeter with waveguide; 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-mounted subwoofer  
designed to augment and extend the full-  
range model’s low-frequency response.  
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1
Model Summary/Packing List  
EVID™ C4.2  
Packing List (Figure 1)  
Perfect for conventional rooms. It has excel-  
lent bandwidth in an esthetically very unob-  
trusive 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 enclosure 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 sys-  
tem to make installations 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  
reverberant “problem” rooms. Its exclusive  
ported, waveguide-coupled, 8-inch driver pro-  
vides excellent intelligibility and definition.  
The 8.2HC’s patent-pending design provides  
great coverage control throughout the voice  
range and above. No other ceiling speaker sys-  
tem provides the combination of excellent pat-  
tern control, wide bandwidth, high power han-  
dling, 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 subwoofers available. Flexible  
installation and powerful low-end perform-  
ance make it the ideal mate to any EVID ceil-  
ing model.  
Figure 1: EVID packing list  
2
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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  
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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 bottom of the ceiling tile during  
the installation process. Typical installation  
hardware needed for either suspended ceil-  
ings 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 remov-  
able terminal block connector that can be  
pre-wired if necessary before speaker installa-  
tion 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 con-  
nects to the ceiling speaker conduit clamp on  
the speaker’s rear terminal cover. This accesso-  
ry 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 speaker 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 hard-  
ware is needed. However, a two-step installa-  
tion procedure 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 pro-  
duction-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  
Figure 5: RPK mounting system  
RR series plates are made of flat sheet metal  
with holes to attach to the joists or trusses of a  
building 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 provides 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 illustrat-  
ed in Figure 4.  
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 character of the ceiling tile and relat-  
ed components, dampening material may  
need to be used under the tile rails or the  
edges of the tiles to eliminate rattles.  
4
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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 posi-  
tioned at any point along the rail. If the tile  
comes out or falls apart, the ends of the sup-  
port rails fall onto the T-grid, which prevents  
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.  
For sheetrock ceiling installations, the C-  
ring should be used by itself to reinforce the  
ceiling material and to spread out the pres-  
sure 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.  
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 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 ceil-  
ing 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 appro-  
priate connector terminals as described  
below and screw down the hold-down  
screw until tight, using a small screwdriver.  
Figure 7: Secure rails to C-Ring  
Figure 8: Tighten with screwdriver  
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5
Installation and Wiring  
INSTALLATION NOTE: CONNECTOR  
WIRING GUIDELINES  
The input connector’s 4 terminals are num-  
bered 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 con-  
nected 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 speakers are described below.  
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.  
C10.1 Subwoofer  
C4.2 Loudspeaker  
Figure 11: Subwoofer polarity with C4.2  
2. Daisy-chaining. Connect the wire pair  
of the subsequent speaker to pins 1 and 4.  
When one input connector is removed, sub-  
sequent speakers will also be disconnected.  
See Figure 10.  
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  
INSTALLATION NOTE: SUBWOOFER  
POLARITY  
Figure 13: Plug connector into socket  
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 maxi-  
mize the low frequency 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.  
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 speak-  
er’s terminal block. Then tighten the strain  
relief fitting as follows:  
6
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Installation and Wiring  
1. If plenum cable is used, slide the wiring  
through the strain relief fitting on the termi-  
nal cover plate (Figure 14). Hold the strain  
relief fittings tight around the cable. Tighten  
the strain relief screws first, then the hori-  
zontal 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'  
suspended ceiling tiles, DO NOT install them  
in lightweight fibreglass-type tiles without  
full secondary 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 sup-  
port line at the rear of the speaker 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.  
Step 5: Mount the Speaker Into  
the Ceiling (Figure 16)  
Figure 14: Secure cable through fitting  
Push the speaker into  
the ceiling hole until  
the front baffle rim is  
flush with the ceiling.  
Tighten the mounting  
tabs by turning the  
screw clockwise until  
the speaker is secure.  
Please note that the  
first clockwise quar-  
ter-turn rotates the  
2. If the installation used flexible (BX) or rigid  
(EMT) conduit, an alternate conduit fitting  
can be used. See Installation Note and  
Figure 15 below.  
attachment tabs out-  
ward. The remaining  
turns tighten the tabs  
down onto the back  
of the ceiling surface  
(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  
suppliers. Simply remove the existing fitting  
by unscrewing the two hold-down screws,  
exposing 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  
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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  
speaker. The ring allows for connection to a  
independent 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  
pushing 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.  
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 por-  
tion at a time until the grille is removed.  
Figure 18: Attach auxiliary support line  
Step 7: Adjust Tap Selector  
(Figure 19)  
The tap selector switch is located on the  
front baffle. Adjust the speaker to the appro-  
priate tap setting before installing the grille.  
In some 70V/100V constant voltage installa-  
tions it is advisable to leave the grilles off if  
final speaker audio level balance adjust-  
ments 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
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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 sol-  
vents 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 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 to mask the drivers and  
internal baffle, paint the speaker, then  
remove the shield.  
EVID™ Ceiling Series Installation and Operation Manual  
9
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Appendix B — System Design Guide  
however, allow for far more flexible options.  
Selecting and Positioning  
Ceiling Loudspeakers  
Several key criteria determine the type and  
quantity of ceiling speakers to employ in a  
job. Specific EVID™ Ceiling Series models  
accommodate each job, depending on how  
these criteria are specified.  
• 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 www.electro-  
voice.com (under downloads/speakers), 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 elements. Two basic placement pat-  
terns prevail: square spacing and hexagonal  
(or crisscross) spacing. See Figure 22.  
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 transduc-  
ers, 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 signif-  
icantly wider dispersion (130 degrees) than  
the C8.2 (110 degrees) at the -6 dB points.  
The effect of this characteristic on an over-  
head 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 specify-  
ing a new system, you can take advantage of  
the C4.2’s wider dispersion to decrease the  
number of speakers required to cover a given  
area. This will result in even greater savings.  
Ceiling  
Grid  
Edge-to-edge Minimum Center-to-  
overlap center  
A
B
A
B
Figure 23: Size vs. coverage  
Of course, the C4.2 is somewhat less sensi-  
tive than the 8-inch C8.2. The difference is  
–5 dB. The C4.2 will also have slightly  
Figure 22: Coverage patterns  
reduced low-frequency capabilities below 65  
Hz. However, neither of these factors is a sig-  
nificant problem in many distributed systems.  
The C4.2 is conservatively rated to handle 80  
watts of continuous power equal to or greater  
than most other brands of 8-inch units, so its  
continuous SPL output will be more than ade-  
quate. Moreover, its low-frequency output  
can easily be augmented with the addition of  
the C10.1 subwoofer. For these reasons, the  
C4.2 represents a great way for you to pro-  
vide good audio coverage while maintaining  
a competitive edge in price quotes in installa-  
In addition to the spacing pattern, the  
designer must choose between three cover-  
age density types, designated respectively  
as edge-to-edge, minimum overlap and cen-  
ter-to-center. The greater the overlap, the  
more uniform the coverage. The illustration  
below shows these various layout patterns.  
Ceiling Systems: Size vs. Coverage  
In the past, system designers usually specified  
8-inch cone loudspeakers for distributed over-  
head systems, at least in part because they rep-  
resented the traditional choice. EVID systems,  
10  
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Appendix B — System Design Guide  
tions that do not need the extended perform-  
ance of the larger models.  
Use of Subwoofers  
The C10.1 subwoofer can add considerable  
low-frequency performance to any EVID  
installation. It is important to note that the  
C10.1 subwoofer depends on the ceiling  
and walls to properly load itself and to rein-  
force its bass output. Correct positioning is  
important to get maximum impact.  
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 subwoofers evenly throughout  
the room and a few feet from the wall or  
corners. The added loading of the walls will  
enhance the response in these larger areas.  
Reverberant Rooms  
and High Ceilings  
Situations arise, however, in which con-  
trolled coverage is more desirable than  
broad dispersion. Very large live spaces  
such as gymnasiums, convention centers,  
shopping mall atriums, and the like all ben-  
efit from more controlled 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.  
SPL Requirements: How Loud?  
The EVID C8.2 is a great speaker to use  
when higher SPL is required. The fidelity  
and bandwidth of the unit is substantial and  
is ideal for applications requiring high quali-  
ty 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 cover-  
age diameter of the EVID models assuming a  
4-foot listening plane height. Using these fig-  
ures 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  
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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  
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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  
period of five (5) years from the date of orig-  
inal purchase. The Limited Warranty does  
not apply to burned voice coils or malfunc-  
tions such as cone and/or coil damage result-  
ing from improperly mounted or installed  
enclosures. If a covered malfunction occurs  
during the warranty period, the product  
will be repaired or replaced (at our discre-  
tion) without charge. The product will be  
returned to the customer prepaid. Additional  
details are included in the Uniform Limited  
Warranty statement.  
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 exclu-  
sion 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.  
Exclusions and Limitations  
Maintenance  
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 opera-  
tion of the product other than as specified  
in the product data sheet or owner’s manu-  
al; (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.  
No maintenance is required when installed  
in accordance with installation and wiring  
guidelines 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 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 avail-  
able from Electro-Voice® Service at 12000  
Portland Avenue, Burnsville, MN 55337. Ph:  
(877) 863-4166.  
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13  
Appendix E — Product Specifications  
14  
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15  
Notes  
16  
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Notes  
EVID™ Ceiling Series Installation and Operation Manual  
19  
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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. C — 7.8.2003  
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