Electro-Voice EVID Series User manual

Installation and Operation Manual
EVID™
Ceiling
Speaker
Systems

ii EVID™ Ceiling Series Installation and Operation Manual
Table of Contents. . . . . . . . . . . . . . . . . . . . . . . ii
Welcome . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Important Features . . . . . . . . . . . . . . . . . . . . . 1
Model Summary. . . . . . . . . . . . . . . . . . . . . . . . 2
Packing List . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Product Feature Identification. . . . . . . . . . . . . 3
Installation and Wiring. . . . . . . . . . . . . . . . . . . 4
Step 1 — Cut the Hole . . . . . . . . . . . . . . . . 5
Step 2 — Install C-Ring
and/or Tile Rails . . . . . . . . . . . . . . . . . . . 5
Step 3 — Attach Wiring to the
Terminal Connector . . . . . . . . . . . . . . . . 5
Step 4 — Secure the Cable to the
Speaker . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Step 5 — Mount the Speaker into the
Ceiling . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Step 6 — Connect an Auxiliary
Support Line . . . . . . . . . . . . . . . . . . . . . . 8
Step 7 — Adjust Tap Selector . . . . . . . . . . . 8
Step 8 — Insert the Grille . . . . . . . . . . . . . . 8
Appendix A — Painting the Speaker . . . . . . . . 9
Appendix B — System Design Guide . . . . . . 10
Selecting and Positioning Ceiling
Loudspeakers . . . . . . . . . . . . . . . . . . . . 10
Ceiling Systems: Size vs. Coverage. . . . . . . 10
Use of Subwoofers . . . . . . . . . . . . . . . . . . 11
Appendix C — Troubleshooting Table. . . . . . 12
Appendix D — Warranty . . . . . . . . . . . . . . . . 13
Exclusions and Limitations . . . . . . . . . . . . 13
Appendix E — Product Specifications . . . . . 14
Table of Contents

Welcome
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.
Important Features
• Matches acoustically to the EVID surface-
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
1EVID™ Ceiling Series Installation and Operation Manual
Welcome/Important Features
ATTENTION: UL SAFETY LISTING
All EVID ceiling speaker models are list-
ed under UL standardUL1480 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™ C4.2
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
quickinstallations.
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 whereaflush-mount design is
desired but demand for high-quality audio exists.
Features a 4-point mounting system to make instal-
lations fast and easy.
EVID™ C8.2LP
The C8.2LP is the same as the C8.2 but in a
low-profile installation package. Ideal for tight
ceiling spaces.
EVID™ C8.2HC
The EVID C8.2HC is ideal for high ceilings and
reverberant “problem” rooms. 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 rangeand above. No
other ceiling speaker system provides the combi-
nation of excellent patterncontrol, wide band-
width, high power handling, and compact design
like the C8.2HC.
EVID™ C10.1
The C10.1 packs a 10-inch subwoofer in a tuned
high performance enclosureto giveamazing
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 makeit the ideal
mate to any EVID ceiling model.
Packing List (Figure 1)
Figure Quantity Part
A2 Speaker system
B4 Tile rails
C2 C-ring support
D2 Grille
E1 Owner’s manual
F4 Support ring screws
G2 Terminal connector
H1 Service center card
I1 Cutout template
J2 Paint Shield
2 EVID™ Ceiling Series Installation and Operation Manual
Model Summary/Packing List
A(x2)
E
G (x2)
C (x2)
H
D (x2)
F (x4)
B (x4)
I
J (x2)
Figure 1: EVID packing list

EVID™ Ceiling Series Systems (sold in pairs)
Model Part No. Description
C4.2 301258000 4" coaxial speaker with horn-loaded, Ti-coated tweeter
C8.2 301261000 8" coaxial speaker with horn-loaded, Ti-coated tweeter
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 Part No. Description
RR-42 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
3EVID™ Ceiling Series Installation and Operation Manual
Product Feature Identification
Grille safety tether
Grille
Strain relief fitting
Seismic tab
(auxiliary support ring)
Removable input terminal connector
Rotating mounting tabs
Terminal cover plate
Figure 3: Top of speaker
Steel
backcan
Mounting
screws
Tap
selector
Grille safety
tether hole
Figure 2: Bottom of speaker

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.
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
sheetrockceilings can be made easier bythe
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 attachto 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
sheetrockinstalls 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.
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: CONTROLLING
VIBRATION
Because of their high performance, EVID ceiling
loudspeakerscan 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
Figure 4: Speaker mounting plate
Figure 5: RPK mounting system

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.
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 ceiling tile. Snap the
tworails 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 eachtabinto the rail, as shown in Figure
7.
INSTALLATION NOTE: TILE RAILS AND
C-RING
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.
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 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.
Step 3: Attach Wiring to the
Terminal Connector (Figure 8)
Insertthe bareend of wire into the appropriate
connector terminals as described below and
screwdown the hold-down screw until tight,
using a small screwdriver.
INSTALLATION NOTE: CONNECTOR
5EVID™ Ceiling Series Installation and Operation Manual
Installation and Wiring
Figure 6: Cut ceiling hole
Figure 7: Secure rails to C-Ring
Screwdriver
Figure 8: Tighten with screwdriver

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
4inside 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.
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.
INSTALLATION NOTE: SUBWOOFER
POLARITY
When adding a subwoofer,be sure to observethe
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.
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.
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
From amplifier or
previous speaker
To next speaker
Figure 10: Daisy-chain wiring
From amplifier or
previous speaker
To next speaker
Figure 9: Parallel wiring
Hold-down
screw
Input connector
Terminal
block
Strain
relief
screws
Horizontal
screw
Figure 13: Plug connector into socket
C10.1 Subwoofer C4.2 Loudspeaker
Figure 11: Subwoofer polarity with C4.2
C10.1 Subwoofer C8.2/C8.2HC/C8.2LP
Loudspeaker
Figure 12: Subwoofer polarity with
C8.2/C8.2HC/C8.2LP

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.
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.
INSTALLATION NOTE: ALTERNATE
CONDUIT FITTINGS
Some cases require alternate fittings, many of
which areavailable 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.
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.
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.
Tighten the mounting
tabs by turning the
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).
7EVID™ Ceiling Series Installation and Operation Manual
Installation and Wiring
Figure 14: Secure cable through fitting
Figure 15: Alternate conduit fitting
Figure 16: Mount
speaker into ceiling
Figure 17: Tighten mounting tabs

INSTALLATION NOTE: MOUNTING TABS
For each attachment screw, first turn one half-
turn counterclockwise to release the mounting
tab from its guide.
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 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.
EVID™ C4.2, C8.2 and C8.2LP
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 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 Figure20). 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
wayis 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
atime until the grille is removed.
8 EVID™ Ceiling Series Installation and Operation Manual
Installation and Wiring
Figure 18: Attach auxiliary support line
Figure 19: Adjust tap selector (left:
C4.2/C8.2/C8.2LP; right: C10.1/C8.2HC)
1
2
Figure 20: Attach the grille

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
Figure21.
If you are painting the grille also, you must
first removethe 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
cardboardpaint shield into the front of the
speaker to mask the drivers and internal baffle,
paint the speaker, then remove the shield.
9EVID™ Ceiling Series Installation and Operation Manual
Appendix A — Painting the Speaker
45˚ 45˚
180˚
180˚
Baffle Can
(do not
paint)
Figure 21: Spray-painting angles

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 accom-
modate each job, depending on how these cri-
teria 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.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.
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.
Ceiling Systems: Size vs.
Coverage
In the past, system designersusually specified 8-
inch cone loudspeakers for distributed overhead
systems, at least in part because they represented
the traditional choice. EVID systems, however,
allow for far more flexible options.
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.
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
advantageof the C4.2’swider dispersion to
decrease the number of speakers required to
cover a given area.This will result in even greater
savings.
Of course, the C4.2 is somewhat less sensitive
than the 8-inch C8.2.The difference is
–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-
10 EVID™ Ceiling Series Installation and Operation Manual
Appendix B — System Design Guide
Grid Edge-to-edge Minimum
overlap
Center-to-
center
Hexagonal Square
Figure 22: Coverage patterns
Ceiling
A
B
A
B
Figure 23: Size vs. coverage

age while maintaining a competitive edge in
price quotes in installations that do not need the
extended performance of the larger models.
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.
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 8' 12' 20' 24'
C4.2 17' 34' 68' 85'
C8.2 11.5' 23' 45' 57'
C8.2HC 6.5' 12' 24' 30'
C10.1 180° coverage
Use of Subwoofers
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.
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.
11EVID™ Ceiling Series Installation and Operation Manual
Appendix B — System Design Guide

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- connection can result in intermittent contact or
put such as dramatically increased resistance, which in turn can
crackling cause reduced output or noises unrelated to the signal.
Improper power Check the power tap setting under the speaker grille to
tap setting 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
hissing, or signal chain the signal chain.
humming
Poor system Check and correct the system grounding, as required.
grounding
Poor low- Out-of-polarity When two speakers are hooked up out of polarity (out
frequency hookup between of phase), the low frequencies cancel each other out.
output 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 C — Troubleshooting Table

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
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.
Exclusions and Limitations
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 anyof its
authorized representatives.
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 formof 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: [phone].
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 limita-
tion 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.
Maintenance
No maintenance is required when installed in
accordance with installation and wiring guide-
lines described in this manual.
13EVID™ Ceiling Series Installation and Operation Manual
Appendix D — Warranty

Specification EVID C4.2 EVID C8.2 EVID C8.2LP EVID C8.2HC EVID C10.1
Dimensions 6.9" ˘ 7.1" 10.0" ˘ 10.6" 7.0"˘ 10.6" 11.9" ˘ 12.6" 11.9" ˘ 12.6"
(depth x diam.) (176 ˘ 181 mm) (255 ˘ 270 mm) (190 ˘ 255 mm) (303 ˘ 320 mm) (303 ˘ 320 mm)
Bezel diameter 8.3" (210 mm) 11.8" (300 mm) 11.8" (300 mm) 13.8" (350 mm) 13.8" (350 mm) Weight 6 lbs (2.7 kg) 11 lbs (5.0 kg) 11 lbs (5.0 kg) 13.2 lbs (6.0 kg) 15.5 lbs (7.0 kg) Cabinet Steel enclosure and Steel enclosure and Steel enclosure and Steel enclosure and Steel enclosure and construction UL94V-0 rated baffle UL94V-0 rated baffle UL94V-0 rated baffle UL94V-0 rated baffle UL94V-0 rated baffle
and bezel and bezel and bezel and bezel and bezel
LF transducer 4" (100 mm) high- 8" (205 mm) high- 8" (205 mm) high- 8" (205 mm) high- 10" (260 mm) high-
compliance driver compliance driver compliance driver compliance driver compliance driver
(weatherized cone) (weatherized cone) (weatherized cone) (weatherized cone) (weatherized cone)
HF transducer .75" (19 mm) Ti-coated 1" (25 mm) Ti-coated 1" (25 mm) Ti-coated 1" (25 mm) Ti-coated N/A
dome dome dome dome
Mounting system Integrated 3-point Integrated 4-point Integrated 4-point Integrated 4-point Integrated 4-point
toggle anchors toggle anchors toggle anchors toggle anchors toggle anchors
Available colors White White White White White
(paintable surface) (paintable surface) (paintable surface) (paintable surface) (paintable surface)
Grille construction Powder-coated steel Powder-coated steel Powder-coated steel Powder-coated steel Powder-coated steel Acoustic design Ported cabinet, Ported cabinet, Ported cabinet, Ported cabinet, Ported cabinet,
two-way design, two-way design, two-way design, waveguide-coupled, internally damped
internally damped, internally damped, internally damped, two-way design, w/passive crossover
w/passive crossover w/passive crossover w/passive crossover internally damped
w/passive crossover
16 EVID™ Ceiling Series Installation and Operation Manual
Appendix E — Product Specifications

17EVID™ Ceiling Series Installation and Operation Manual
Specification EVID C4.2 EVID C8.2 EVID C8.2LP EVID C8.2HC EVID C10.1
Frequency 65 Hz–20 kHz 50 Hz–20 kHz 50 Hz–20 kHz 50 Hz–20 kHz 45 Hz–150 Hz
response
Power handling 50 W (with 75 W (with 75 W (with 75 W (with 100 W (with
(@ 8ΩΩ)overload protection) overload protection) overload protection) overload protection) overload protection) Coverage pattern 130°conical 110°conical 110°conical 75°conical N/A Sensitivity 86 dB 91 dB 91 dB 93 dB 94 dB (SPL 1W/1 m)
Input 8Ω;70V/100V 8Ω;70V/100V 8Ω;70V/100V 8Ω;70V/100V 8Ω;70V/100V
configuration 70V/100V 1.8 (70V only)/ 1.8 (70V only)/ 1.8 (70V only)/ 7.5 (70V only)/ 7.5 (70V only)/ power taps 3.7/7.5/15/30W 3.7/7.5/15/30W 3.7/7.5/15/30W 15/30/60 W 15/30/60 W Included Tile bridge, Tile bridge, Tile bridge, Tile bridge, Tile bridge, accessories mounting ring mounting ring mounting ring mounting ring mounting ring

18 EVID™ Ceiling Series Installation and Operation Manual
Notes

EVID™ Ceiling Series Installation and Operation Manual 19
Notes

America
USA: Telex Communications Inc. 12000 Portland Ave South, Burnsville, MN 55337, USA, Phone: [phone], Fax: [phone]
Canada (East): Acoustik GE Inc. 5715 Kincourt, Montréal, PQ H4W 1Y7, Canada, Phone: [phone], Fax: [phone]
Canada (Ontario): HEK Marketing Inc. 27 Fearn Crescent, Ajax, ON L1S 5L7, Canada. Phone: [phone], Fax [phone]
Canada (West): KMT Pro Audio. 04-301 Nassau Street North, Winnipeg, MB R3L-2J5, Canada, Phone: [phone], Fax: [phone]
Mexico: Telex de Mexico S.A. de C.V., Av. Parque Chapultepec 66-202, Col. El Parque, Edo. de Mexico, Phone:[phone], Fax:[phone]
Latin America: Telex Communications Inc. 12000 Portland Ave South, Burnsville, MN 55337, USA, Phone: [phone], Fax: [phone]
Europe, Africa & Middle-East
Germany: Telex EVI Audio GmbH. Hirschberger Ring 45, D 94315, Straubing, Germany, Phone: [phone], Fax: [phone]
France: EVI Audio France S.A. Parc de Courcerin, Allée Lech Walesa, F 77185 Lognes, France, Phone: [phone], Fax: [phone]
UK: Telex Communications Ltd. 4, The Willows Centre, Willow Lane, Mitcham, Surrey CR4 4NX, UK, Phone: [phone], Fax: [phone]
Africa & Middle-East: Telex EVI Audio GmbH. Hirschberger Ring 45, D 94315, Straubing, Germany, Phone: [phone], Fax: [phone]
Asia & Pacific Rim
Japan: EVI Audio Japan Ltd. 5-3-8 Funabashi, Setagaya-Ku, Tokyo, Japan 156-0055, Phone: [phone], Fax: [phone]
Australia: EVI Audio (Aust) Pty Ltd. Slough Business Estate, Unit 23, Silverwater, N.S.W. 2128, Australia, Phone: [phone], Fax: [phone]
China: EVI Audio (HK) Ltd. 7th Floor China Minmetals Tower, No. 79 Chatham Road South, Tsim Sha Tsui, Kowloon, HK, Phone: [phone], Fax: [phone]
Singapore: Telex Pte. Ltd. 3015A Ubi Road 1, 05-10 Kampong Ubi Industrial Estate, Singapore 408705, Phone: [phone], Fax: [phone]
www.electrovoice.com • Telex Communications, Inc. • www.telex.com
© Telex Communications, Inc. 07/2003
Part Number 38110-143
Rev. D — 1.4.2006