Electro-Voice EVI-12 User manual

EVI-12
Full-Range Loudspeaker
•Ground-breaking advance in single-
box utility
•New small-format Vari Intense® 6
horn
•1-inch exit titanium compression
driver
•12-inch cast-frame woofer
•1,000-watt peak, 250-watt long-term
power capacity
•Terminal strip inputs for secure lead
connections
• Compact, lightweight, refinishable,
easy-to-install enclosure
• Available in white or black finish
• Three-point hanging system with
optional U-bracket
Description
The Electro-Voice EVI-12 full-range loud-
speaker is a factory assembled system fea-
turing a small-format Vari Intense®horn and
a 12-inch direct radiator in a vented enclo-
sure. The EVI-12 is intended to be used as a
stand-alone full-range system, but may also
beusedasthemid-bass/high-frequencycom-
ponent in most multi-way loudspeaker sys-
tems.
The EVI-12 consists of a proprietary cast-
frame 305-mm (12-in.) high-power, long-
excursion low-frequency driver mounted
within a vented chamber of 2.5 cubic feet,
optimallytuned to provide unequalizedlow-
frequency response to below 45 Hz. The
high-frequency complement consists of a
25.4-mm (1.0-in.) exit compression driver
utilizing a new small-format Vari Intense®
horn. Vari Intense®is a revolutionary pat-
ented6technology that throws a 6-to 10-dB
hotter signal to the back of the room. This
compensates for the drop in SPL over the
longer distance to the back of the room
(25 feet for the short throw and about 70 feet
for the long throw in a typical room). This
single horn replaces a short-throw/long-
throw horn combination, reducing the ma-
terial and labor costs of an installation. Elec-
trical connections to the system are made by
large screw terminals able to accept up to
12-gauge wire, mounted to an input panel
on the back of the enclosure. The system is
provided with a 2,000-Hz passive crossover
featuring self-setting tweeter protection
and asymetric acoustic slopes with pas-
sive lobe steering for uniform coverage
throughout the crossover region. The en-
closure is constructed from 19-mm (0.75-in.)
thick,thoroughlybraced7-plybirchplywood
lined with sound-absorbent glass wool. Five
3/8-16 shoulder-bolt hanging points are pro-
vided for safe suspension of the EVI-12.
There are two hanging options recom-
mended. The optional U-Bracket hanging
kit, MB-EVI12 is available for use with the
3/8-16 T-nut locations on the side of the en-
closure along with a single pull-up strap lo-
cated on the lower back of the enclosure.
The second option is available using the two
T-nut locations on the front top of the en-
closure as well as the pull-up location on the
lower back of the enclosure. The EBK-1 kit
of three forged shoulder eyebolts is avail-
able if structurally rated 3/8-16 eyebolts
are not locally available. The system may
then be hung individually or in an array.
Please read the included Applications
Guidefor moreinformationon mounting
methods and installation tactics. The sys-
tem may be ordered in a textured black or
white paint which can be painted to comple-
ment any interior. The grille is constructed
from a sturdy 16-gauge medium-gloss black
or white powder-coated steel and may be
painted or covered with cloth to match the
enclosure.
The EVI-12 full-range Vari Intense®loud-
speaker is the ideal system whenever high-
outputfull-frequency-rangematerial must be
reproduced in churches, gymnasiums,
auditoriums, hotels and civic centers.
Architects' and Engineers'
Specifications
The loudspeaker system shall be of the full-
range type consisting of a single 305-mm
(12-in.) cast-frame high-power woofer in a
vented enclosure and a 25.4 mm (1-in.) exit
compression driver loaded with a small-for-
mat Vari Intense®horn. The loudspeaker sys-
tem shall meet the following performance
criteria. Power handling shall be 250 watts
of pink noisewitha6-dBcrestfactorforeight
hours, band limited from 45 Hz to 20 kHz.3
Frequency response shall be smooth and
uniformly usable from 45 Hz to 20 kHz.
Pressure sensitivity shall be 99.5 dB SPL
when measured at one meter on axis with
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EVI-12 Full-Range Loudspeaker
EVI-12 Full-Range Loudspeaker
one watt of band-limited pink noise from
45 Hz to 20 kHz. The enclosure shall be
constructed of 19-mm (0.75-in.) 7-ply birch
plywood and shall be heavily braced and
lined with sound-absorbent glass wool. The
system shall include five 3/8-16 mounting
points to accommodate either a three-point
riggingsystem or an optionalU-bracket with
pull-up point. The finish of the enclosure
shallbe textured black orwhite and a remov-
able black or white metal grille shall be pro-
vided. The dimensions of the enclosure shall be
554 mm (21.8 in.) high by 356 mm (14.0 in.)
wide by 699 mm (27.5 in.) deep. The loud-
speaker system shall weigh 22 kg (48 lb).
The loudspeaker system shall be the
Electro-Voice EVI-12 black or EVI-12
white.
Figure 1—EVI-12 Frequency Response
Uiform Limited Warranty Statement
Electro-Voice products are guaranteed
against malfunction due to defects in mate-
rials or workmanship for a specified period,
as noted in the individual product-line
statement(s)below,orinthe individual prod-
uct data sheet or owner’s manual, beginning
with the date of original purchase. If such
malfunction occurs during the specified pe-
riod, the product will be repaired or replaced
(at our option) without charge. The product
will be returned to the customer prepaid.
Exclusions and Limitations: The Limited
Warranty does not apply to: (a) exterior fin-
ish or appearance; (b) certain specific items
described in the individual product-line
statement(s)below, orin the individual prod-
uct data sheet or owner’s manual; (c) mal-
function resulting from use or operation of
the product other than as specified in the
product data sheet or owner’s manual; (d)
malfunction resulting from misuse or abuse
of the product; or (e) malfunction occurring
at any time after repairs have been made to
the product by anyone other than Electro-
Voicedio Service or anyof its authorized ser-
vice representatives. Obtaining Warranty
Service: To obtain warranty service, a cus-
tomer must deliver the product, prepaid, to
Electro-Voice Service or any of its autho-
rized 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 600 Cecil
Street, Buchanan, MI 49107 (800/234-6831
or FAX [phone]). Incidental and
Consequential Damages Excluded: Prod-
uct repair or replacement and return to the
customer are the only remedies provided to
the customer. Electro-Voice shall not be li-
ablefor any incidental or consequential dam-
ages including, without limitation, injury to
persons or property or loss of use. Some
states do not allow the exclusion or limita-
tion of incidental or consequential damages
so the above limitation or exclusion may not
apply to you. Other Rights: This warranty
gives you specific legal rights, and you may
also have other rights which vary from state
to state.
Electro-Voice Speakers and Speaker Sys-
temsareguaranteed against malfunction due
to defects in materials or workmanship for a
periodoffive (5) years from the dateoforigi-
nalpurchase. The Limited Warranty doesnot
apply to burned voice coils or malfunctions
such as cone and/or coil damage resulting
from improperly designed enclosures.
Electro-Voice active electronics associated
with the speaker systems are guaranteed for
three (3) years from the date of original pur-
chase. Additional details are included in the
Uniform Limited Warranty statement.
For warranty repair, service information, or
a listing of the repair facilities nearest you,
contact the service repair department at:
616/695-6831 or 800/685-2606.
Fortechnical assistance, contact Technical
Support at 800/234-6831 or 616/695-6831,
M-F, 8:00 a.m. to 5:00 p.m. Eastern Stan-
dard time.
Specifications subject to change without
notice.
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EVI-12 Full-Range Loudspeaker
EVI-12 Full-Range Loudspeaker
Figure 2—EVI-12 Impedance
Figure 3—EVI-12 Distortion 1% power
Figure 4—EVI-12 Distortion 10% power
3

EVI-12 Full-Range Loudspeaker
EVI-12 Full-Range Loudspeaker
This system side view provides a means of
orientation for the vertical polar data. Hori-
zontal data (short throw) is presented con-
ventionally. Please reference the Applica-
tions Guide for more information on inter-
preting the polar data.
Scale: 5 dB/division
Horizontal
Vertical 0º
90º
30º
60º
Figure 5—EVI-12 Polar Response
4

EVI-12 Full-Range Loudspeaker
EVI-12 Full-Range Loudspeaker
DIRECTIVITY FACTOR, Rq(Q)
Figure 9—EVI-12 Dimensions
- Horizontal
- Vertical
- Horizontal
- Vertical
Figure 8—EVI-12 Directivity
Figure 7—EVI-12 Beamwidth -
Short Throw
Figure 6—EVI-12 Beamwidth -
Long Throw
5

EVI-12 Full-Range Loudspeaker
EVI-12 Full-Range Loudspeaker
Part Number 534759-EXP. — 9820
600 Cecil Street, Buchanan, MI 49107
616/695-6831, 616/695-1304 Fax
©Telex Communications, Inc., 1998 • Litho in U.S.A.
Specifications
Versions Available
EVI-12 black
EVI-12 white
System Type:
Direct-radiating vented-bass full-
range loudspeaker system
Pressure Sensitivity:1
99.5 dB SPL
Frequency Response (see Figure 1):2
45 - 20,000 Hz
Power Handling:3
250 watts, long-term continuous
1,000 watts, peak power
Maximum Output:4
122 dB SPL, long-term continuous
128 dB SPL, peak power
Impedance (see Figure 2):
8.0 ohms nominal
5.6 ohms minimum (17.5 kHz)
Beamwidth,
Long Throw:
Horizontal, 1-20 kHz:
60° (+38°, -5°)
Vertical, 1-20 kHz:
70° (+35°, -15°)
Short Throw:
Horizontal, 600 Hz-20 kHz:
110° (+25°, -15°)
Vertical, 600 Hz-20 kHz:
90° (+40°, -20°)
Directivity Factor, Rθθ
θθ
θ(Q), 1.2-20 kHz:
14.0 (+4.5, -4.0)
Directivity Index, Di, 1.2-20 kHz
12.5 dB (+1.5 dB, -2.7 dB)
Components:
High-efficiency, high-power cast-
frame 305-mm (12-inch) woofer with
one 25.4-mm (1.0-inch) exit com-
pression driver mounted to a small-
format Vari Intense®horn
Input Terminals:
Large screw terminals
Replacement LF:
1812-2148
Replacement HF:
833-0990
Replacement Grille:
73581 black
73752 white
Enclosure:
Direct-radiating vented LF, built of
19-mm (0.75-inch), 7-ply birch
plywood with appropriate bracing,
lined with glass wool; five 3/8-16
shoulder bolt hanging points included
Dimensions:
554 mm (21.8 in.) high
356 mm (14.0 in.) wide
699 mm (27.5 in.) deep
Net Weight:
21.8 kg (48 lb)
Shipping Weight:
25.4 kg (56 lb)
Finish:
Black or white textured paint with
black or white 16-gauge powder-coated
grille
Accessories:
Electro-Voice MB-EVI12 U-Bracket
suspension kit
Electro-Voice Eyebolt suspension kit
Notes on Measurement Conditions
1. Band-limited pink noise signal, one watt
calculatedusingE2/Zmin, 3.16-meter measure-
ment distance referred to one meter.
2. On-axis, one watt calculated using E2/Zmin,
3.16-meter measurement distance referred to
one meter, low frequencies corrected for
anechoic-chamber error.
3. This system rating is patterned after the
ANSI/EIARS-426-Amethodwherethe test
signal is pink noise with a 6-dB crest factor
over the bandwidth of the system, with
power calculated using E2/REx 1.15, for 8
hours.
4. This measurement made under the same
conditions as pressure sensitivity, and takes
intoaccountany power-compression effects
due to nonlinearities in the system.
5. The distortion at any given frequency
may be found by graphically taking the dif-
ference between the fundamental and har-
monic, and adding the number of decibels
which the harmonic has been raised on the
graph and apply the formula: percent dis-
tortion = 100 x 10 (-difference in dB/20)
6. The use of Vari Intense®horns is protected
by U.S. patent # 5,020,630.
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