Electro-Voice Xds User manual

Xds
X-Array™ Double
Subwoofer System
• Unprecedented acoustic output in
a small, lightweight package
• Ring Mode Decoupling (RMD)™
provides accurate transient detail
• EVX-180B woofers
• Enclosure shell matches two
full-size X-Array™ systems
• Optimized for maximum subwoofer
-frequency acoustic output
Description
The X-Array™product line represents im-
portantadvancementsinconcert-sound-rein-
forcement technology. The design goals
called for the highest acoustic output capa-
bilitywith the highest fidelity in lightweight,
compact enclosures that were easy to array.
The development began with a clean sheet
of paper and took an integrated approach.
The individual loudspeaker drivers, horns,
enclosures, rigging hardware and system
configurations were designed from the
ground up specifically for this high-perfor-
mance application.
The Xds is a manifolded, vented-box sub-
woofer system utilizing two 457-mm (18-in.)
woofers in the double-wide X-Array™enclo-
sure shell. The enclosure has been optimized
for maximum subwoofer-frequency output.
The two woofers face each other in a mani-
fold chamber at the center of the enclosure.
This manifolding technique (U.S. Patent
Number 4,733,749) increases the acoustic
loading, resulting in increased low-fre-
quencyefficiency(atslightlyaboveboxtun-
ing) and reduced distortion compared to
conventional direct-radiating designs. The
woofers were designed as part of the Xds
development and represent a step forward
in state-of-the-art loudspeaker design in
terms of high acoustic output with low dis-
tortion and low power compression.
Electro-Voice engineers developed a new
technology dubbed Ring Mode Decoupling
(RMD™) to substantially improve clarity and
intelligibility by reducing both linear and
nonlinear resonance modes that color the
sound.
The low-frequency driver in the Xds is the
EVX-180B. An improved version of the in-
dustry-standard EVX-180A high-excursion
467-mm (18-in.) woofer that has distin-
guished itself as an industry standard for
high-power, low-frequency reproduction.
During the X-Array™development, the ther-
mal conduction of the motor was improved
and the suspension was redesigned, giving
the EVX-180B even lower power compres-
sion and a longer mechanical lifetime. In the
Xds, the woofers are manifolded in a vented
enclosure optimized for maximized sub-
woofer output from 30-160 Hz with mini-
mized distortion.
Ring Mode Decoupling, (RMD™), is a tech-
nique utilized and named by Electro-Voice
to describe a process used to improve sound
quality in loudspeaker systems. RMD™of-
fers a solution to a very fundamental prob-
lem. It has long been recognized that two
differentloudspeakersystemscansounddif-
ferent even though they both may be equal-
ized to have the same frequency response.
This difference is due to a variety of reso-
nances, or ring modes that color the sound.
Although this ringing may be very low in
level compared to the program material, it is
still audible. The source of these resonances
may be mechanical or acoustical in nature,
or a combination of both. In addition, they
may be linear or nonlinear, resulting in their
character changing with level. Furthermore,
these Ring Modes may be aggravated when
multiple loudspeaker enclosures are as-
sembled into arrays. The result is a colora-
tion that decreases intelligibility and clarity,
with the nature of that coloration varying
with level. Often, the listener perceives that
coloration as imbalance in the frequency re-
sponse, and will attempt to electronically
adjust the system to restore the spectral bal-
ance. However this electronic equalization
has the negative effect of changing the pro-
gram material itself.
Ring Mode Decoupling (RMD™) addresses
mechanical resonances with mechanical so-
lutions, and acoustical resonances with
acousticalsolutions.IntheXdsdevelopment,
RMD™was applied at every level – to the
individual low-frequency drivers, the low-
frequency enclosure chambers and the inter-
action between multiple enclosures. The de-
signprocessincluded,forexample,thedriver

Xds Double Subwoofer System
XdsDoubleSubwooferSystem
2
cone, suspension geometry and materials,
enclosure geometry and materials, absorp-
tive materials, etc. The result is a dramatic
improvementinclarityandwithamuchmore
neutral sound (a lack of coloration) with the
loudspeaker system maintaining its sonic
integrity from the very-lowest sound pres-
sure levels to the very-highest sound pres-
sure levels. This means that the front-of-
house engineer will not have to retune the
EQ and level settings as the SPL is increased
throughout the show. This also means that
the sound-system performance will remain
consistent in different array configurations
and from venue to venue.
The Xds utilizes a double-wide X-Array™
enclosureshell.TheheightoftheXdsisiden-
tical to the standard, full-size X-Array™en-
closures (like the Xf, Xn and Xb); however
the footprint matches that of two standard
X-Array™ enclosures sitting side by side
with their sides parallel. Thus, two standard
X-Array™enclosures (like the Xf, Xn, Xcn
or Xb) may be stacked on top of the Xds.
The Xds does not have rigging hardware for
flying.
The durable Xds enclosure is constructed of
18-mm, 13-ply birch plywood and has a
wear-resistant black, textured paint finish.
The system is trapezoidal, forming a 36°
wedge and includes a heavy-duty steel grille
withawater-resistant charcoal-gray foam in-
terlining. The enclosure features vinyl
bumper pads on the front corners to and feet
on the bottom to resist wear.
A variety of accessories are available for the
X-Array™loudspeaker systems, including
rigging hardware, dollies, covers, electronic
crossovers, amplifier racks and speaker ca-
bling.ConsulttheX-Array™Accessories sec-
tion for a complete listing of the available
accessories
Applications
TheX-Array™loudspeaker systems were de-
signed for optimal performance in both con-
cert-soundand permanent-installation appli-
cations where studio-monitor sound quality
is required at concert-sound levels. The X-
Array™loudspeaker systems work well in-
dividually, in small arrays and in large ar-
rays. The high acoustic output from these
compact, lightweight systems provide the
highest acoustic-power-to-weight ratio, the
highestacoustic-power-to-frontal-area ratio,
and the highest acoustic-power-to-bulk-vol-
ume ratio in the industry. That means that
X-Array™systems will be considerably
smaller and lighter compared to competitive
systems having equivalent acoustic output.
With its response from 32-200 Hz, the Xds
is recommended for subwoofer and low-fre-
quency applications where extremely high
levels of bass are required. Specifically, the
Xds has been optimized to provide sub-
woofer reinforcement for all of the X-Ar-
ray™loudspeakersystems.Typically,theXds
would be crossed over to provide subwoofer
reinforcement from 80 Hz and below in par-
allel with the full-range systems (made up
of Xf, Xn, Xcn, Xb and Xcb systems that
cover 40 Hz and above). However, the Xds
may be crossed over at 125 Hz and used as a
combination subwoofer/low-frequency sys-
tem in place of or in addition to the standard
low-frequency systems (like the Xb and
Xcb). The Xds may be used individually or
in multiples to construct subwoofer/low-fre-
quency arrays, or may be used with the full-
range X-Array™systems to construct full-
range, large-scale arrays. The double-wide
Xds enclosure footprint matches that of two
standardX-Array™enclosuressittingside by
side with their sides parallel, allowing two
standard, full-size systems to be stacked on
top of the Xds. The Xds does not have fly-
ing hardware and is intended for stacking
only.TheXdswould be well suited for front-
of-house,front-fill,andside-fillapplications.
The Xds is intended to be used with other
X-Array™systems for a full-range response
as an active system that requires an active
electronic crossover. Both the Electro-Voice
Dx38 and Klark Teknik DN8000 digital
crossovers are recommended for signal
control. (See the Crossover, Equalization
and Signal Delay Controller section.) The
Electro-Voice P3000 amplifier is recom-
mended for powering the Xds. (See the
Amplifier Recommendations section.)
Power-Handling Capabilities
The Xds systems are rated as per the “ANSI/
EIA RS-426-A Loudspeaker Power- Rating,
Full-Range Test,” which uses a shaped-
random-noise signal to simulate typical
music to test the mechanical and thermal
capabilities of the loudspeakers. A digital
crossover was used to provide the appro-
priate filtering and equalization. The test
parameters are as follows:
Subwoofer Section (Pins 1 and 2 paral-
leled):
PE(MAX): 1,200 watts
Test Voltage: 58.7-volts rms
117.4-volts peak
RSR (1.15RE): 2.88 ohms
Amplifier Recommendations
Power amplifiers with the following ratings
are recommended for use with the Xds loud-
speaker systems:
SUB: 800 watts per channel
into 8 ohms
93-volts rms short term
132-volts peak
Xds loudspeakers may be paralleled with
other Xds systems as long as the amplifiers
can drive the lower impedances. To main-
tain a sufficient damping factor with long
cable runs, amplifier loads of four ohms per
channel are recommended. The Electro-
Voice P3000 amplifiers are ideal for power-
ing the X-Array™systems.
Crossover, Equalization and Signal
Delay Controller
The Xds is intended to be used with other
X-Array™loudspeaker systems (like the Xf,
Xn, Xcn, Xb or Xcb) to construct full-range
arrays as an active system requiring an ac-
tive crossover, equalization and signal de-
lay controller. For basic applications, the
Electro-Voice Dx38 2-in/4-out controller is
recommended. For more sophisticated ap-
plications, the Klark Teknik DN8000 2-in/
5-out controller is recommended. Linkwitz-
Rileycrossover filters with a minimum slope
of 24 dB per octave at 80-125 Hz are rec-
ommended, and infrasonic filter protection
at 34 Hz or higher with a minimum slope of
12-dB/octave is recommended. Both the
Dx38 and the DN8000 offer appropriate fil-
tering, equalization and signal delay capa-
bilities to provide optimum performance of

Xds Double Subwoofer System
XdsDoubleSubwooferSystem
3
the X-Array™loudspeaker systems. Digi-
tal parameter settings for both controllers
are available upon request.
Electrical Connection and System
Wiring
Two paralleled Neutrik 8-pin Speakon®con-
nectors are used for electrical connection to
the Xds loudspeakers with the following pin
assignments:
SUB1: Pins 1 Paralleled
SUB2: Pins 2 Paralleled
The Xds wiring diagram is shown in Figure
7.Since the connectors are paralleled, it does
not matter which connector is used as the
input or output when paralleling Xds sys-
tems. Although Pins 3 and 4 are not used by
the Xds systems, they are paralleled on the
input panel. This allows an X-Array™MB/
HF box (like the Xf or Xcn– which use Pins
3 and 4, but not Pins 1 and 2) to be paral-
leled with an Xds, allowing all eight con-
ductors to be used with a single cable run to
the amplifiers. Note that, when two Xds sys-
tems are jumped from one to another via the
input/outputconnections,theamplifierhome
run cable will have two woofers on Pins 2
(for a 4-ohm load) and two woofers on Pins
1 (for a 4-ohm load).
Field Replacement
Normal service for the Xds requires only a
#2 Phillips screwdriver and a 3/16-inch hex-
key wrench. The drivers may be accessed as
follows:
SUB: First remove the grille, then remove
the screws securing the hatch on the front of
the enclosure. Remove the screws securing
the 18-inch woofer and lift the woofer out
of the enclosure. In the event of failure, the
entire woofer must be replaced or reconed.
The following service parts are available
from the service department in Buchanan,
Michigan USA:
LF #818-2883 EVX-180B complete driver
The complete drivers are available only for
repair replacement and are not available for
general sale.
Architects’ and Engineers’
Specifications
The loudspeaker system shall be a two-
driver, manifolded, vented-box low-fre-
quency system with a frequency response
from 32-200 Hz. The loudspeaker system
also shall have two 457-mm (18-in.) low-
frequency woofers and each shall have an
8-ohm, 101-mm (4-in.) diameter voice coil
and a 600-watt power rating. The loud-
speaker shall have a rigging system enabling
a column of loudspeakers to be hinged at
their back corners, with relative downward
angles set by adjustable rigging straps at the
front. The enclosure shall be constructed of
18-mmthick,13-plybirchplywood,andshall
be trapezoidal, forming an 36° wedge and be
914mm (36.00 in.) high, 1166mm (45.92 in.)
wide at the front, 736 mm (28.98 in.) wide at
the back and 759 mm (29.88 in.) deep, and
shall weigh 121 kg (267 lb).
The loudspeaker system shall be the
Electro-Voice Xds.
Rigging Accessories:
Grid: This ATM Fly-Ware™ “T”–shaped,
all-steel-construction grid was specifically
designed as a single column of X-Array™
systems. Multiple grids can be linked to-
gether with couplers on front and back re-
tractable arms, the position of which sets the
splay angle between adjacent columns. Part
number MEGS-4000-T. ATM Fly-ware™,
2100S.Wilmington Ave.,Carson,CA90810
USA, 310/834-5914
Xrhg Grid Hinge: Two Xrhg grid rigging
hinges are used to attach the rear of the top
enclosure in a column to the rear of an X-
Array™compatible grid. Each hinge consists
of two precision-machined steel rigging-
track fittings connected by an alloy-steel
chain.Part number 510-2999. Electro-Voice,
600 Cecil St., Buchanan, MI 49107 USA,
616/695-6831 or 800/234-6831
XrhpPickup Hinge: Two Xrhp pickup rig-
ging hinges are used to create custom rig-
ging assemblies to attach to the rear of the
topenclosure in a column when an ATM grid
is not used. Each hinge consists of one pre-
cision-machined steel rigging-track fitting
with an alloy-steel chain. Part number 510-
3000. Electro-Voice, 600 Cecil St., Bucha-
nan, MI 49107 USA, 616/695-6831 or 800/
234-6831
XrhlLinking Hinge: Two Xrhl linking rig-
ging hinges are used to link two enclosures
together at the rear. Each hinge consists of
two precision-machined steel rigging-track
fittings connected by a heavy-duty steel
hinge.Partnumber 510-2998. Electro-Voice,
600 Cecil St., Buchanan, MI 49107 USA,
616/695-6831 or 800/234-6831
XrslLong Rigging Steel Straps: Two Xrsl
long rigging straps are used at the front of
two enclosures to adjust their relative verti-
cal angles. The Xrsl may also be used to at-
tachthefrontofthetop enclosure to the ATM
grid when upward angles are not required.
Each all-steel strap consists of two New
Haven NH32102-2 double-stud fittings con-
nected by black plastic-coated wire rope.
Sound Manufacturing Inc., 3336 Primera
Ave., Hollywood, CA 90068 USA,
213/850-5042 or ATM Fly-ware™, 2100 S.
Wilmington Ave., Carson, CA 90810 USA,
310/834-5914
Xrss Short Rigging Steel Straps: Two
Xrss short rigging straps are used to at-
tach the front of the top enclosure to the
ATM grid. The Xrss may also be used at
the front of two enclosures when a limited
range of vertical angles are required. The
all-steel Xrss utilizes the same construc-
tion as the Xrsl. Sound Manufacturing Inc.,
3336 Primera Ave., Hollywood, CA 90068
USA, 213/850-5042 or ATM Fly-ware™,
2100S.Wilmington Ave.,Carson,CA90810
USA,310/834-5914
General Rigging Supplies: A wide vari-
ety of standard and specialty rigging hard-
ware components for both touring and per-
manent-installation applications is avail-
able. Sound Manufacturing Inc., 3336
Primera Ave., Hollywood, CA 90068 USA,
213/850-5042 or ATM Fly-ware™, 2100 S.
Wilmington Ave., Carson, CA 90810 USA,
310/834-5914
Electronic Accessories:
KlarkTeknikDN8000 Digital Controller:
The DN8000 digital electronic loudspeaker
controller has a two-in/five-out architecture,
with each output having programmable
high-pass and low-pass filters, four-band

Xds Double Subwoofer System
XdsDoubleSubwooferSystem
4
XdsDoubleSubwooferSystem
equalization, signal delay, compressor-lim-
iter-and noise-gate functions. Program pa-
rameters for optimal performance of the
X-Array™ systems are available. Klark
Teknik, Klark Industrial Park, Walter Nash
Road, Kidderminster, Worcestershire DY11
7HJEngland, 44-156-274-1515
Electro-Voice Dx38 Digital Controller:
The Dx38 digital electronic loudspeaker
controller has a two-in/four-out architecture,
witheachoutputhavingprogrammablehigh-
pass and low-pass filters, four-band equal-
ization, signal delay compressor and lim-
iter functions. Program parameters for op-
timal performance of the X-Array™ sys-
tems are available. Electro-Voice, 600 Cecil
St.,Buchanan, MI 49107USA,616/695-6831
Electro-Voice P3000 Power Amplifiers:
The stereo P3000 power amplifiers are rated
at 800 watts into 8 ohms, or 93-volts rms
short term. The amplifiers are 3-U high and
weigh 28 kg (62 lb) each. EVI Audio, 600
Cecil St., Buchanan, MI 49107 USA,
616/695-6831
X-Array™ Amplifier Racks: These 16-U
racks will hold four Electro-Voice P3000
poweramplifiers, one Klark Teknik DN8000
digital controller, 1-U light module, and a 2-
U multipin patch panel. The aluminum-
frame/wood-panel racks are vibration-isola-
tion mounted on heavy-duty wheel boards
and come prewired for AC power, audio and
control signal sends and Neutrik®Speakon
speaker connectors. db Sound, L.P., 1219
Rand Road, Des Plaines, IL 60016 USA,
847/299-0357
X-Array™SpeakerCables: Eightconduc-
torcable with four #11AWGconductors and
four #13 AWG connectors. The larger con-
ductors are used in the LF bands for in-
creased damping factor. Lengths made to
order. Standard terminations are Neutrik
SpeakonTM NL8FC connectors wired to
X-Array™ standards; however, custom
terminations are available. Entertainment
Technology Cable, 1247 Rand Road,
Des Plaines, IL 60016 USA, 800/529-6312
Miscellaneous Accessories:
X-Array™ Loudspeaker Covers: Heavy-
duty covers are available for the X-Array™
speakers. These covers wrap around the
enclosures, while sitting on a dolly, and
Velcro together at the back for fast instal-
lation and removal. db Sound, L.P., 1219
Rand Road, Des Plaines, IL 60016 USA,
847/299-0357
X-Array™ Dolly Boards: Double-wide
dolly built to hold four X-Array™ loud-
speakers,two wide by two high. The double-
thick 18-mm birch-plywood construction
includes cutouts and keys for loudspeaker
enclosure shape and alignment feet. The
dolly boards are painted black and utilize
four extra-heavy-duty 4-inch x 2-inch cast-
ers. Custom-designed dolly boards are also
available to meet specific requirements.
R&R Cases and Cabinets, 1217 Rand Road,
Des Plaines, IL 60016 USA, 847/299-8100
Racks and Road Cases: A variety of gen-
eral purpose, custom racks and hard-shell
road cases are available for touring or per-
manent-installationapplications.R&RCases
and Cabinets, 1217 Rand Road, Des Plaines,
IL 60016 USA, 847/299-8100
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,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. Ex-
clusions 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,orinthe individual prod-
uct data sheet or owner’s manual; (c) mal-
function resulting from use or operation of
theproduct other thanasspecified in theprod-
uctdata sheetorowner’smanual;(d) malfunc-
tion 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 service rep-
resentatives. Obtaining Warranty Ser-
vice: 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 available from Electro-Voice Service at
600 Cecil Street, Buchanan, MI 49107
(800/234-6831orFAX 616/695-4743). Inci-
dental and Consequential Damages Ex-
cluded: Product repair or replacement and
return to the customer are the only rem-
edies provided to the customer. Electro-
Voice shall not be liable for any incidental
or consequential damages including, with-
out limitation, injury to persons or prop-
erty or loss of use. Some states do not
allow the exclusion or limitation of inciden-
tal 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-
temsare guaranteedagainst malfunction due
to defects in materials or workmanship for a
periodoffive(5)yearsfrom the date of origi-
nalpurchase.The Limited Warranty does not
apply to burned voice coils or malfunctions
such as cone and/or coil damage result-
ing from improperly designed enclosures.
Electro-Voice active electronics associ-
ated with the speaker systems are guaran-
teedfor three (3) years from the date of origi-
nal purchase. Additional details are included
in the Uniform Limited Warranty statement.
Electro-Voice Accessories are guaranteed
against malfunction due to defects in ma-
terials or workmanship for a period of one
(1) year from the date of original purchase.
Additional details are included in the Uni-
form Limited Warranty statement.
For warranty repair or service informa-
tion, 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.

Xds Double Subwoofer System
XdsDoubleSubwooferSystem
5
Vertical
Horizontal
5 dB per division
XdsDoubleSubwooferSystem
Figure 1 — Polar Response
The directional response of the Xds was measured in an anechoic environment at a distance of 6.1 m (20 ft.) using 1/3-octave-filtered pink
noise with a full spherical measurement system. The polar response of the loudspeaker system at selected 1/3-octave frequencies is
shown. The selected frequencies are representative of the polar response of the system.
63 Hz 80 Hz 100 Hz
160 Hz 200 Hz125 Hz

Xds Double Subwoofer System
XdsDoubleSubwooferSystem
6
Figure 2 — Frequency Response
Thefrequency response of the Xds was mea-
sured on axis in the far field in an anechoic
environment using a swept sine-wave sig-
nal. The Klark Teknik DN8000 digital elec-
tronic unit was used to provide the neces-
sary crossover filters, equalization and time
delay. One watt of power (2.00-volts rms at
70 Hz) was applied to the mid band of the
low-frequency section. The sound pressure
level was normalized for an equivalent one-
meter distance.
Figure 3 — Beamwidth
Thebeamwidthof the Xds, (i.e., the included
horizontalandvertical coverage angles at the
-6-dB points) was measured with a full-
spherical measurement system as described
in Figure 1.
Figure 4 — Directivity
The directivity index, Di, and directivity fac-
tor, R, of the Xds were measured with a full-
spherical measurement system as described
in Figure 1.

Xds Double Subwoofer System
XdsDoubleSubwooferSystem
7
Figure 5 — Distortion
Distortion for the Xds was measured on axis
in the far field in an anechoic environment
with an input signal that would result in a
sound pressure level of 115 dB at one meter.
The Klark Teknik DN8000 digital electronic
unitwas used to provide the necessary cross-
over filters, equalization and time delay. The
sound pressure level was normalized for an
equivalent one-meter distance. Plots of sec-
ond and third harmonic distortion are shown
referenced to the fundamental.
Figure 6 — Impedance
The impedance of each frequency band of
the Xds was measured in an anechoic envi-
ronment
Figure 7 — Wiring Diagram
The wiring diagram of each frequency band
of the Xds is shown.
+
_
+
_
BLACK SPEAKER TERMINAL IS "-"
8 OHMS NOMINAL
5.0 OHMS DC
SUB2:
SUB1:
PINS 3 & 4 PARALLELED
PINS 2 PARALLELED
PINS 1 PARALLELED
RED SPEAKER TERMINAL IS "+"
BLACK
4+
4 -
3+
3 -
2+
2 -
1+
1 -
3 -
3+
4 -
4+ BLACK
BLUE
BLACK
RED
WHITE
BLACK
RED
BLACK
RED
BLACK
BLUE
BLACK
WHITE
SUB2
5.0 OHMS DC
8 OHMS NOMINAL
SUB1
BLACK
RED
RED
2 -
1+
1 -
BLACK
RED
BLACK
PARALLELED CONNECTORS
2+

Xds Double Subwoofer System
XdsDoubleSubwooferSystem
8
600 Cecil Street, Buchanan, MI 49107
616/695-6831, 616/695-1304 Fax
Specifications
Frequency Response (measured in far
field, with and without crossover and
equalization, calculated to one meter
on axis, swept sine wave, one watt into
system - 2.00 V at 70 Hz, anechoic
environment; see Figure 2):
32-200 Hz
Crossover Frequency:
80-125 Hz
Efficiency Mid Band:
6.0 %
MaximumLong-Term-Average
Power-Handling Capacity (per ANSI/
EIA RS-426A 1980):
1,200 watts
Maximum Long-Term-Average Mid-
Band Acoustic Output, LF/HF:
72 acoustic watts
Sensitivity (SPL at one meter, indi-
cated input power, anechoic environ-
ment, average level),
1 watt:
100 dB
1,200 watts:
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, 63-200 Hz:
180° (+180°, -40°)
Vertical, 63-200 Hz:
200° (+160°, -80°)
Directivity Factor, R (Q), 63-200 Hz
Average (see Figure 4):
3.0 (+1.9, -1.0)
Directivity Index, Di, 63-200 Hz
Average (see Figure 4):
4.8 dB (+2.1 dB, -1.7 dB)
Distortion (115 dB SPL at one meter,
shaped spectrum; see Figure 5),
Second Harmonic,
40 Hz:
0.6%
80 Hz:
0.2 %
Third Harmonic,
40 Hz:
0.3 %
80 Hz:
0.1 %
Transducer Complement,
Two EVX-180B 18-in. woofers
Impedance (see Figure 6),
Nominal:
Two 8-ohm loads
Minimum:
Two 6.1-ohm loads
Input Connections:
Two Neutrik NL8MPR Speakon®
connectors paralleled
Recommended Amplifier Power,
Rating:
800 watts per channel @ 8 ohms
(93-volts rms short term)
Enclosure Construction,
Enclosure Shell:
18-mm, 13-ply birch plywood
Finish:
Black textured paint
Grille:
Powder-coated steel with foam
Dimensions,
Height:
914.4mm(36.00in.)
Width (front):
1166 mm (45.92 in.)
Width (back):
736.1mm(28.98in.)
Depth:
758.8mm(29.88in.)
Angle:
36° wedge
Net Weight:
121 kg (267 lb)
Shipping Weight:
130 kg (282 lb)
Part Number 534826 Rev. B—9934SPEAKERS—X-ArrayTM ©EVI Audio, 1998 • Litho in U.S.A.
Figure 8—Dimensions