Electro-Voice Xi-1152/94 User manual

Xi-1152/94
X-Array Install™
Two-Way, Full-Range,
Sound-Reinforcement
System
• Ring-Mode Decoupling (RMD™)
• Substantially improved vocal range
performance
• New EVX-155 woofer with 3-dB additional
LF output, increassed power handling/
lower distortion
• New DH6 compression driver
• New HF horn (90° x 40°) fully rotatable for
vertical or horizontal suspension
Applications
The Xi-1152/94 loudspeaker system is ideal
for any professional touring or installation
application requiring accurate, high-level
sound reinforcement. Because of the unique
performance capabilities featured in this sys-
tem, the Xi-1152/94 offers on extremely
wide-range music reproduction as well as
accurate vocal coverage and maximized in-
telligibility.
The Xi-1152/94 and associated controller
combinations are recommended for applica-
tions requiring full bandwidth down to 50 Hz.
Description
Introducing a family of advanced sound
reinforcement products for everyone who
desires the sound quality of Electro-Voice's
X-Array™ touring systems. X-Array In-
stall™ is the ideal choice for small-to-me-
dium array configurations and fixed instal-
lations of any size.
Inspired by the most demanded features
of EV's acclaimed X-Array™ touring sys-
tems, the X-Array Install™ series incorpo-
rates a potent combination of very high out-
put, medium- to long-throw "cells," and
Ring-Mode Decoupling (RMD™).
RMD™
Ring-Mode Decoupling is the same ad-
vanced technology built into the X-Array™
touring series. RMD™ produces substan-
tially improved tonal character and fidelity
whether operated at low or extremely high
sound pressure levels. RMD™ attacks time
domain "ringing modes" at their sources.
Mechanical solutions resolve mechanical is-
sues,andacousticalsolutionsaddressacous-
ticalmodesfoundinallsoundreinforcement
systems. The combination of each RMD™
technique provides improved tonal charac-
terandfidelityatincreasingdrivelevels.The
result is clear, even sound quality with vastly
improved intelligibility.
DH6 Large-Format Driver
All multiway systems in the series are
equipped with EV's newly developed DH6
large-format compression driver. The DH6
compression driver incorporates many
RMD™ techniques, including a new tita-
nium diaphragm with increased internal me-
chanical damping that provides clear, intel-
ligible upper vocal performance. The phase
plugplacedclosetothediaphragmimproves
acoustic damping and boosts output in the
10-to 20-kHz range.
Magnetics
Mid-bass and high-frequency drivers in
X-Array Install™ products use ferrite mag-
netics instead of the neodymium magnetics
used in X-Array™ touring systems. While
neodymium drivers provide unmatched out-
put capabilities, the advanced RMD™ tech-
nology used in X-Array Install™ produces
worldclasssoundreinforcementatveryhigh
levels.
Applications
The Xi-1152/94 loudspeaker system is ideal
for any professional touring or installation
application requiring accurate, high-level
sound reinforcement. Because of the unique
performancecapabilitiesfeaturedinthissys-
tem, the Xi-1152/94 offers on extremely
wide-range music reproduction as well as
accurate vocal coverage and maximized in-
telligibility.
TheXi-1152/94 is recommended for appli-
cations requiring full bandwidth down to
50 Hz. Where very high levels of deep bass
are required, maximum performance may be
achieved with the addition of the Xi-1191
(single 18-inch subwoofer) this subwoofer
system features the EVX-180B 18-inch sub-
woofer and is designed to be used with as-
sociated processors.

X-Array Install™ Xi-1152/94 Loudspeaker System
X-Array Install™ Xi-1152/94 Loudspeaker System
2
Power-Handling Test
Electro-Voice components and systems are
manufactured to exacting standards to en-
sure reliability in continuous use in arduous
real-life conditions. Besides utilizing indus-
try-standard power tests, extreme in-house
power tests which push the performance
bounadries of the loudspeakers are also
performed for an extra measure of reliability.
The Xi-1152/64systemsarerated per ANSI/
EIA RS-426-A Loudspeaker Power Rating,
Full Range Test, which uses a shaped-ran-
dom-noise signal to simulate typical music
to test the mechanical and thermal capabili-
ties of the loudspeakers. The Dx34 digital
electronic unit was used to provide the
necessary crossover filters and equaliza-
tion during power testing. Specifically, the
Xi-1152/64 passes the ANSI/EIA RS-426-
A power test with the follwing test param-
eters:
Low-Frequency Section:
PE(MAX): 600 watts
Test Voltages: 58.7 volts rms
117.4 volts peak
RSR(1.15 RE): 5.75 ohms
High-Frequency Section:
PE(MAX): 75 watts
Test Voltages: 28.46 volts rms
57.8 volts peak
RSR(1.15 RE): 10.8 ohms
Crossover, Equalization and Time-Delay
Controller
The Xi-1152/94 speaker system and variants
are designed as an integrated package that
utilizes any of the following controllers:
Merlin ISP100, Electro-Voice Dx34 digital
crossover system or Klark Teknik DN8000.
Optimal performance of the Xi-1152/94
speaker system can only be assured when
using the above referenced controllers.
All controllers used with the Xi-1152/94
feature a 1,480-Hz crossover frequency uti-
lizing 24-dB-per-octave Linkwitz-Riley fil-
ters. All contain fixed time delay and equal-
ization for optimum performance of the
Xi-1152/94.
Electrical Connection and System
Wiring
Electrical connections to the Xi-1152/94 are
made on the back of the enclosure via a
4-pin conncector. There are two connectors
on the input panel to allow paralleling of
other Xi-1152/94 systems. The Neutrik
Speakon®NL4MPR is used for both connec-
tions. The pin assignments are as follows:
Pin 1+: LF(+)
Pin 1-: LF(–)
Pin 2+: HF(+)
Pin 2-: HF(–)
The wiring diagram of the loudspeaker sys-
tem is shown in Figure 7. The electrical im-
pedance is shown in Figure 6.
Amplifier Requirements
Power amplfiers with the following ratings
are recommended for use with the
Xi-1152/94 speaker systems:
LF: 600-1,200 watts continuous into 8 ohms
HF: 125-250wattscontinuous into 8 ohms
Xi-1152/94 speakers may be paralleled only
with other Xi-1152/94 speakers if the am-
plifier is capable of delivering full power at
the lower impedances. The use of amplifi-
ers with lower power ratings is acceptable;
however, the full-power capabilities of the
Xi speakers will not be realized. The use of
amplifiers with significantly higher power
ratings will generate maximum dynamic
range and fidelity, but care must be utilized
forlonger duration signals as mechanicaland
thermal damage are possible in the system.
Under certain circumstances, higher rated
amplifiers are acceptable. It is acceptable to
drive the Xi-1152/94 speakers with a stereo
power amp utilizing one channel to drive the
low frequencies and the other channel to
drive the high frequencies. See owner's
manuals on various controllers for appropri-
ate settings.
Flying the X-Array Install™ Systems
A manual entitled the X-Array Install™ Fly-
ing Manual is available from Electro-Voice,
and is included with each flying Xi loud-
speaker system. A brief introductory over-
view is included here. The X-ArrayInstall™
Flying Manual should be consulted for com-
pletestructural specifications and detailedin-
formationon safely suspending and usingthe
Xi systems.
The Xi systems incorporate a unique, two-
pointflyingsystemthat permits a wide range
ofvertical angle adjustment, andoffersmaxi-
mumflexibilityinarray design for both tour-
ing sound and permanent installations. The
quick-release, aircraft-rated, heavy-duty L-
track-type hardware design allows arrays of
loudspeakers to be assembled (and disas-
sembled) very quickly, and offers such flex-
ibility in the vertical angling of cabinets that
pull-up points are usually unnecessary. Fur-
thermore, all of the flying Xi loudspeaker
models include the same rigging hardware,
allowing different models to be mixed as
necessary throughout an array.
Theworking-load limit (for an 8:1safetyfac-
tor) for each rigging point on the Xi loud-
speaker enclosure is 227 kg (500 lb) for a 0°
pull angle and 170 kg (375 lb) for a 90° pull
angle when used with the New Haven
NH32101-2Sdouble-studfitting,and113kg
(250 lb) when used with the New Haven
NH8192-2 or Ancra 42546-10 single-stud
fittingswithlockingpins. Theworking-load
limit (for an 8:1 safety factor) for the overall
enclosure is 340 kg (750 lb). (Consult the
X-Array Install™ Flying Manual forspecific
structural ratings and limitations.) The
enclosures may be oriented with the rigging
track on the sides of the enclosure, or on the
top and bottom, and may be daisy-chained
together as long as the safety factor is 8:1 or
greater, and local regulations are met. For
fire safety and additional structural strength
inboth flying orientations, top-to-bottomand
side-to-side metal straps link the rigging
track inside the enclosure. Electro-Voice
offers a line of flying-hardware accessories
for use with the Xi loudspeaker systems. All
associated rigging is the responsibility
of others.
CAUTION: The Xi loudspeaker system
should be suspended overhead only in ac-
cordance with the procedures and limita-
tionsspecifiedintheX-ArrayInstall™ Fly-
ing Manual and manual updates notices.

X-Array Install™ Xi-1152/94 Loudspeaker System
X-Array Install™ Xi-1152/94 Loudspeaker System
3
Field Replacement
The Xi-1152/94 was designed for expedient
field service. Removing the woofer bolts
allows the woofer to be easily removed.
Removing the horn-mounting screws allows
access to the compression driver, both
through the horn and woofer baffle cutouts.
A woofer failure will require replacement of
the entire driver. In the case of a compres-
sion driver failure, a diaphragm assembly
replacementkit with instructions isavailable.
If desired, the complete driver may be
returned for service.
The following replacement parts are avail-
able from Electro-Voice Service in
Buchanan, Michigan:
LF:Complete woofer: EV PartNo.815-3075
HF: Diaphragm kit; EV Part No. 84233-XX
forming a 30° wedge, and shall have a
vinyl-clad steel-grille system.
The Xi-1152/94 system shall be used with
recommendedcontrol systems and shallhave
a two-way crossover circuit with fourth-or-
derLinkwitz-Rileyfilters,equalization, time
delay and protection circuitry. When used
with the electronic control unit, the loud-
speaker system shall have a flat on-axis fre-
quency response from 50 to 16,000 Hz.
The loudspeaker enclosure dimensions
shallbe 759 mm (29.88 inches)high,450 mm
(17.73 inches) wide and 413 mm (16.26 inches)
deep and shall weigh 40.7 kg (89.5 lb). The
system shall incorporate a two-point rigging
system that will accept New Haven
NH32101-2 double-stud ring fittings and the
New Haven NH8192-2.5 and Ancva 4254C-10
single-stud fittings.
The loudspeaker shall be Electro-Voice
Xi-1152/94.
prepaid, to Electro-Voice Service or any of
its authorized service representatives to-
gether with proof of purchase of the product
in the form of a bill of sale or receipted in-
voice. A list of authorized service represen-
tatives is available from Electro-Voice Ser-
viceat 600 Cecil Street,Buchanan, MI 49107
(800/234-6831 or FAX [phone]). In-
cidental and Consequential Damages Ex-
cluded: Product repair or replacement and
return to the customer are the only remedies
providedto the customer.Electro-Voiceshall
notbeliable for any incidental or consequen-
tial 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.
OtherRights:This warranty gives you spe-
cific legal rights, and you may also have
other rights which vary from state to state.
Electro-Voice Speakers and Speaker Sys-
temsare guaranteed against malfunction due
to defects in materials or workmanship for a
periodof five (5) years from the dateof origi-
nalpurchase. The Limited Warranty does not
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
purchase. Additional details are included in
the Uniform Limited Warranty statement.
Electro-Voice Accessories are guaranteed
against malfunction due to defects in mate-
rials or workmanship for a period of one (1)
year from the date of original purchase. Ad-
ditional details are included in the Uniform
Limited Warranty statement.
Electro-Voice FlyingHardware(including
enclosure-mountedhardware and rigging ac-
cessories) is guaranteed against malfunction
due to defects in materials or workmanship
for a period of one (1) year from the date of
original purchase. Additional details are in-
cluded in the Uniform Limited Warranty
statement.
Architects' and Engineers' Specifications
The loudspeaker system shall be a two-way
biampedsystem with performance controlled
by a variety of dedicated electronic control
units. The loudspeaker system shall have a
15-inch, low-frequency, direct-radiating
driver with an 8-ohm, 4-inch voice coil con-
structed of aluminum wire, and shall be ca-
pable of a 600-watt shaped pink-noise sig-
nal with a 6-dB crest factor for 8 hours (as
per ANSI/EIA RS-426-A 1980 standard).
The loudspeaker system shall have a
50.8-mm (2.0-inch) exit compression driver
mounted on a high-frequency horn. The
compression driver shall have 76.2-mm
(3.0-inch) diameter,.0015-inchthicktitanium
dome and an 16-ohm nominal, 76.2-mm
(3.0-inch) diameter voice coil constructed
of aluminum wire, and which shall be ca-
pable of handling a 75-watt, 1,480-to
20,000-Hz pink-noise signal with a 6-dB
crest factor for 8 hours (as per EIA RS-
426-A 1980 standard). The high-frequency
horn shall be of the constant-directivity type
andfully rotatable and shall produce a nomi-
nalhorizontal beamwidth (6-dB-down angle)
of 90° from 2,000 to 20,000 Hz, and a nomi-
nal vertical beamwidth of 40° from 1,600 to
20,000 Hz. The loudspeaker system enclo-
sure shall be constructed of 18-mm thick
13-ply birch plywood, trapezoidal in shape,
Uniform Limited Warranty
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, or in the 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, or in 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-Voice Service or any of its autho-
rized service representatives. Obtaining
Warranty Service: To obtain warranty ser-
vice, a customer must deliver the product,

X-Array Install™ Xi-1152/94 Loudspeaker System
X-Array Install™ Xi-1152/94 Loudspeaker System
4
Horizontal
Vertical
Figure 1— Polar Response
The directional response of the system was measured in an anechoic environment at a distance of 6.1m (22 feet) using 1/3-octave-filtered pink
noise with a full spherical measurement system. The DN8000 digital electronic unit was used to provide the necessary crossover filters,
equalization and time delay. The polar response of the loudspeaker system at selected 1/3-octave frequencies is shown. The selected frequen-
cies are representative of the polar response of the system.
160 Hz 200 Hz 250 Hz
315 Hz 400 Hz 500 Hz
630 Hz 800 Hz 1 kHz
1.6 kHz 2 kHz1.25 kHz

X-Array Install™ Xi-1152/94 Loudspeaker System
X-Array Install™ Xi-1152/94 Loudspeaker System
5
Figure 2—Frequency Response
The frequency response of the system was
measured on axis in the farfield in an
anechoic environment using a swept sine-
wave signal. The DN8000 digital electronic
unitwasusedtoprovidethenecessarycross-
overfilters,equalizationandtimedelay.One
watt of power (2.83 volts rms at 250 Hz) was
applied to the midband of the low-frequency
section. The sound-pressure level was nor-
malizedfor an equivalent one meterdistance.
12.5 kHz
3.15 kHz 4 kHz
5 kHz 6.3 kHz 8 kHz
10 kHz 16 kHz
2.5 kHz

X-Array Install™ Xi-1152/94 Loudspeaker System
X-Array Install™ Xi-1152/94 Loudspeaker System
6
Figure 3—Beamwidth
The beamwidth of the system, (i.e., the in-
cluded horizontal and vertical coverage
anglesat the 6-dB downpoint)was measured
with a full spherical measurement system as
described in "Polar Response."
Figure 4—Directivity
The directivity index, Di, and directivity fac-
tor, R θ(Q), of the system were measured
with a full spherical measurement system as
described for the "Polar Response."
Figure 5—Distortion
Distortion for the system was measured on
axis in the farfield in an anechoic environ-
ment with an input signal that would result
in a sound-pressure level of 115 dB at one
meter. The Dx34 digital electronic unit was
used to provide the necessary crossover fil-
ters, equalization and time delay. A fre-
quency spectrum typical of close-mic’d rock
music was employed. The sound-pressure
level was normalized for an equivalent one-
meter distance. Plots of second and third
harmonic distortion are shown referenced to
the fundamental.

X-Array Install™ Xi-1152/94 Loudspeaker System
X-Array Install™ Xi-1152/94 Loudspeaker System
7
Figure 6—Impedance
The impedance of each frequency band of
the system was measured in an anechoic en-
vironment.
Figure 7—Wiring Diagram
The wiring diagram of each frequency band
of the system is shown.
Figure 8—Dimensions
HF
LF

X-Array Install™ Xi-1152/94 Loudspeaker System
X-Array Install™ Xi-1152/94 Loudspeaker System
8
Specifications
Frequency Response (measured in far
field, calculated to one meter on axis,
swept si ne wave, one watt into LF
section 2.83 V at 250 Hz, anechoic
environment; see Figure 2):
50-16,000 Hz
Crossover Frequency:
1,500 Hz
Efficiency, LF/HF:
4.2/25 %
Maximum Long-Term-Average Power-
Handling Capacity (per ANSI/EIA RS-
426-A 1980), LF/HF:
600/75 watts
Maximum Long-Term-Average
Midband Acoustic Output, LF/HF:
25/19 acoustic watts
Sensitivity (SPL at one meter, indicated
input power, anechoic environment,
average level), LF/HF,
1/1 watt:
98.0/112.0 dB
300/75 watts:
125.8/130.8 dB
Beamwidth (angle included by 6-dB-
down points on polar responses,
indicated one-third-octave bands of
pink noise; see Figures 1 and 3),
Horizontal, 1,200-16,000 Hz:
90° (+11°, –13°)
Vertical, 1,200-16,000 Hz:
40° (+8°, –8°)
Directivity Factor, Rθθ
θθ
θ(Q), 1,200-16,000
Hz Average (see Figure 4):
17.1 (+3.1, –4.9)
Directivity Index, Di, 1,200-16,000 Hz
Average (see Figure 4):
12.3 dB (+0.7 dB, –1.5 dB)
Distortion (115 dB SPL at one meter,
shaped spectrum; see Figure 5),
Second Harmonic,
100 Hz:
2.6 %
500 Hz:
0.2 %
2,000 Hz:
1.4 %
5,000 Hz:
1.2 %
Third Harmonic,
100 Hz:
0.7 %
500 Hz:
0.3 %
2,000 Hz:
<0.1 %
5,000 Hz:
<0.1 %
Transducer Complement,
HF:
DH6 driver, HP94S 90° x 40° horn
LF:
EVX-155 15-in. woofer
Impedance (see Figure 6),
Nominal, LF/HF:
8/16 ohms
Minimum, LF/HF:
6.3/12.2 ohms
Input Connections:
Two Neutrik NL4MPR Speakon®
connectors paralleled
Recommended Amplifier Power,
HF:
125-250 watts
LF:
600-1,200 watts
Enclosure Construction,
Enclosure Shell:
18-mm, 13-ply birch plywood
Finish:
Black textured paint
Grille:
Vinyl-coated steel with foam
Rigging:
Two-point heavy-duty L-track system,
accepts New Haven NH32102-2
double-stud fittings, or New Haven
NH8192-2S or Ancra 42546-10 single-
stud fittings with safety pins
Dimensions,
Height:
759 mm (29.88 in.)
Width (front):
450 mm (17.73 in.)
Width (back):
248 mm (9.75 in.)
Depth:
413 mm (16.28 in.)
Angle:
30º wedge
Net Weight:
40.8 kg (90 lb)
Shipping Weight:
43.1 kg (95 lb)
SPEAKERS - X-Array Install™ Part Number 535193RevA — 9822
600 Cecil Street, Buchanan, MI 49107
800/234-6831, 616/695-6831, 616/695-1304 Fax
©Telex Communications, Inc. 1998 • Litho in U.S.A.