Electro-Voice Eliminator Monitor User manual

Eliminator®
Monitor
Floor Monitor
•ExclusiveRingModeDecoupling
(RMD™)
•Integral stand adaptor
•PRO™ circuit provides HF driver
protection
•Constant-directivity80°x55°horn
•Usablemonitoranglesof50°and 65°
•350-watt long-term rms power
capacity
•Dual 1/4-inch phone jack or dual
Neutrik Speakon®inputs 1
1See Connections section
Description
The Electro-Voice Eliminator®Monitor is a
350-watt 2-way floor monitor that incorpo-
rates Electro-Voice's exclusive ring mode
decoupling (RMD) technology. The
Eliminator monitor features a constant di-
rectivity 80° x 55° horn in a vertical orienta-
tion that provides usable monitor angles
of 50° and 65°. The combined professional
quality Electro-Voice manufactured com-
ponents arrange in a horizontal array with
a very durable/road worthy light weight
enclosure. The result is a very high per-
formance system with excellent vocal
reproduction and extended bass response.
The Eliminator Monitor incorporates
Electro-Voice's exclusive ring mode
decoupling technology. This technology
deals with the common resonance or "ring-
ing modes" found in all loudspeaker sys-
tems. It deals with mechanical modes uti-
lizing mechanical solutions, and deals with
acoustical resonant or ringing modes uti-
lizing acoustical solutions. The result is
substantially cleaner vocal reproduction
and a response that is more uniform
regardless of input level conditions.
The system uses the newly developed
DL15BFH low frequency driver to provide
both extended low frequency response
and cleaner fundamental vocal reproduc-
tion. It also utilizes the DH2010A high
frequency pure Titanium driver coupled
to a constant directivity 80° x 55° horn to
produce extended high frequency
response and low distortion upper vocal
reproduction.
The Eliminator Monitor features a self re-
setting high frequency protection circuit,
EV's PRO circuit. This is included with
the high quality passive network to pre-
vent accidental high frequency overload
and improve system reliability. The bass
section of the Eliminator Monitor is de-
signed using Thiele Small optimized pa-
rameters for a solid performance to 77 Hz.
In addition to including RMD techniques,
the 15'' (381 mm) DL15BFH woofer is spe-
cially designed to provide extended 350-watt
continuous (1200-watt peak) power han-
dling. These power handling ratings are
achieved using a 6 dB crest factor which
provides peak levels 4 times that above the
continuous rating of 350-watts.
The Eliminator Monitor also features
a stand mount adapter on the woofer
side for vertical orientation (standard
1 3/8 diameter.)
Speaker Protection
The Eliminator Monitor, like all other
vented systems, experiences rapidly in-
creasing cone excursion below the box-
tuning frequency, while the acoustic out-
put decreases rapidly. Therefore, to pro-
tect the Eliminator Monitor and maximize
the power output of the system, it is nec-
essary to insert an active 45- to 80-Hz high-
pass filter into the circuit. The filter should
have a slope of at least 12 dB per octave.
Such subpassband filters are found in many
crossovers and equalizers manufactured
by Electro-Voice, as well as other commer-
cially available equipment.
Enclosure Construction
The Eliminator Monitor enclosure is con-
structed of Road-Wood, a structural
material that combines the strength of high-
quality plywood with the density and
acoustic damping of particle board with-
out brittleness. Road-Wood uses the
same principle of crossbanding veneers,
as in plywood, in order to achieve its very
high rigidity. A tough liquid-phenolic resin
is blended with long, narrow strands of

Eliminator®Monitor
Eliminator
®
Monitor
2
hardwood. Alternate layers are perpen-
dicularly bonded under intense heat and
pressure to form panels of superior unifor-
mity. Unlike many grades of plywood,
Road-Wood is dimensionally stable,
water resistant and free from voids.
A combination of dado-cut joints and
tough adhesives ensure a sonically dead
enclosure free from panel resonances.
The densely woven, industrial-grade,
abuse-resistant carpeting provides a fin-
ish that is both attractive and highly du-
rable. Heavy-duty corner protectors, firmly
secured rubber feet, recessed handles and
a protective metal grille complete the pic-
ture and ensure that the Eliminator Moni-
tor speaker system is ideally suited to a
long and reliable life on the road.
Frequency Response
The combination of a 15-inch woofer, wide-
bandwidth high-frequency driver and an equal-
ized crossover results in the wide and smooth
overall response shown in Figure 1. This re-
sponse was measured at 3.05 meters (10feet),
using a 4-volt swept sine-wave input in an
anechoic chamber. No external equalization
was used. Figure 1 has been averaged and
corrected for 1 watt at 1 meter.
Connections
The Eliminator monitor is equipped with two
parallel 1/4-inch phone jacks. (The Elimina-
tor Monitor E version has two parallel Neutrik
Speakon®NL4MP connectors.) Another sys-
tem can be connected in parallel by using the
other connector. Care must be taken not to
abuse the amplifier by connecting impedances
which are too low.
Constant-Directivity Speaker System
The crossover frequency and speaker compo-
nent geometries have been selected so that the
directional characteristics of the woofer and
constant-directivity horn match at the crossover
frequency to create a special system type 
the constant-directivity system. At higher fre-
quencies the vertical coverage pattern remains
constant and the horizontal pattern
smoothly transitions to a 55° angle above
5,000 Hz. Response within the 80° x 55° rated
coverage angle is uniform, which means
dependable coverage without hot spots
or dead zones at certain frequencies. The
80° x 55° dispersion characteristic also
helps avoid early reflections from nearby
surfaces which could degrade perfor-
mance. The controlled directivity of the
high- and low-frequency transducers also
eliminates response irregularities caused
by diffraction off nearby enclosure edges
and, in combination with an essentially flat
on-axis frequency response, produces a
total acoustic power output that is uniform
with frequency.
Directivity
A unique feature of the Eliminator Moni-
tor is the constant-directivity dispersion
provided by the 80° x 55° horn. The polar
response of the system at selected one-
third-octave bandwidths is shown in Fig-
ure 5. These polar responses were mea-
sured in an anechoic environment at 6.1
meters (20 feet) using one-third-octave
pink-noise inputs. The frequencies se-
lected are fully representative of the polar
response of the system. Beamwidth of the
system utilizing the complete one-third-
octave polar data is shown in Figure 6.
Directivity factor, R, and directivity index,
Di, are plotted in Figure 7.
Power-Handling Capacity
Electro-Voice components and systems are
manufactured to exacting standards, en-
suring they will hold up, not only through
the most rigorous of power tests, but also
through continued use in arduous, real-
life conditions. The EIA Loudspeaker
Power Rating Full Range (ANSI/EIA RS-
426-A 1980) uses a noise spectrum which
mimics typical music and tests the ther-
mal and mechanical capabilities of the com-
ponents. Electro-Voice will support rel-
evant additional standards as and when
they become available. Extreme, in-house
power tests, which push the performance
boundaries of the woofers, are also per-
formed and passed to ensure years of
trouble-free service.
Specifically, the Eliminator passes ANSI/
EIA RS-426-A 1980 with the following values:
RSR = 5.175 ohms (1.15 x RE)
PE(MAX) = 350 watts
Test voltage = 42.55 volts rms,
85.10 volts peak (+6dB)
The peak power-handling capacity of a
woofer is determined by the peak test volt-
age amount. For the Eliminator Monitor, a
85.10-volt-peak-test voltage translates into
1,400-watts short-term peak power-handling
capacity. This is the equivalent of four times
the average power-handling capacity, and
is a peak that can be sustained for only a
few milliseconds. However, this sort of short
duration peak is very typical in speech and
music. Provided the amplifier can reproduce
the signal accurately, without clipping, the
woofer will also perform accurately and reli-
ably, even at these levels.
Amplifier Recommendations.
The power-handling rating of the Elimina-
tor®Monitor is 350-watts continuous. The
specific tests used employ a crest factor
(ratio of peak energy to continuous en-
ergy) of at least 6 dB. During extended
testing, the Eliminator®Monitor is routinely
subjected to peak levels far in excess of its
continuous rating of 350 watts. Many am-
plifier designs are capable of producing
peak power levels in excess of their ratings
as well, so exact pairing of loudspeaker
rating and amplifier ratings is not neces-
sary. Amplifier continuous ratings of 250
watts to 400 watts are suggested. Larger
amplifier ratings are recommended for maxi-
mum dynamic range, but it should be rec-
ommended that amplifier continuous lev-
els (as opposed to peak levels) be within
the range quoted for the Eliminator® Moni-
tor long-term average power-handling rating.
Service
In the unlikely event the Eliminator Moni-
tor requires service, the woofer and driver
can both be replaced or serviced from the
front. A service data sheet is available from
Electro-Voice.
Architects and Engineers
Specifications
The loudspeaker shall be a compact
vented-box type. The low frequencies

Eliminator
®
Monitor
Eliminator®Monitor
3
shall be reproduced with one 350-watt
(ANSI/EIA RS-426-A 1980) DL15BFH 381-
mm (15-in.) vented woofer, and a
DH2010A high-frequency compression
driver mounted on a 80° x 55° constant-
directivity horn. The system will repro-
duce the frequencies from 77 to 20,000
Hz. The system shall be capable of pro-
ducing average sound levels in excess of
124 dB in the long term, and short-term
peaks of 130 dB.
The enclosure shall be constructed of
black, carpeted, Road-Wood. The di-
mensions shall be 645 mm (25.39 in.) wide,
406 mm (15.98 in.) high, and 471 mm (18.53 in.)
deep. The system shall weigh 19.5 kg (43
lb). Two parallel 1/4-inch phone jack con-
nections shall be provided. (Two Neutrik
Speakon®connections shall be provided
on the E version).
The loudspeaker system shall be the
Electro-Voice Eliminator®Monitor (Moni-
tor (E)).
Uniform Limited Warranty
Electro-Voice products are guaranteed
against malfunction due to defects in ma-
terials or workmanship for a specified pe-
riod, as noted in the individual product-
line statement(s) below, or in the individual
product data sheet or owners manual, be-
ginning with the date of original purchase.
If such malfunction occurs during the
specified period, the product will be
repaired or replaced (at our option) with-
out charge. The product will be returned
to the customer prepaid. Exclusions and
Limitations: The Limited Warranty does
not apply to: (a) exterior finish or appear-
ance; (b) certain specific items described
in the individual product-line statement(s)
below, or in the individual product data
sheet or owners manual; (c) malfunction
resulting from use or operation of the prod-
uct other than as specified in the product
data sheet or owners manual; (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 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 available from Electro-Voice Service at
600 Cecil Street, Buchanan, MI 49107 (800/
234-6831 or FAX [phone]). Inciden-
tal and Consequential Damages Excluded:
Product repair or replacement and return
to the customer are the only remedies pro-
vided to the customer. Electro-Voice shall
not be liable for any incidental or conse-
quential damages including, without limi-
Figure 1Axial Frequency Response,
(anechoic environment, 4 volts/3.05 meters
(10 feet), normalized to 1 watt/1 meter)
tation, injury to persons or property or loss
of use. Some states do not allow the exclu-
sion or limitation of incidental or conse-
quential 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-
tems are guaranteed against malfunction
due to defects in materials or workman-
ship for a period 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 de-
signed enclosures. Electro-Voice active
electronics associated with the speaker
systems are guaranteed for three (3) years
from the date of original purchase. Addi-
tional 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.
For technical assistance, contact
Technical Support at 800/234-6831 or
616/695-6831, M-F, 8:00 a.m. to 5:00 p.m.
Eastern Standard time.
Specifications subject to change without
notice.

Eliminator®Monitor
Eliminator
®
Monitor
4
Figure 2Harmonic Distortion
Response 10% Rated Power Input
(25 watts), (anechoic environment,
3.05 meters (10 feet) on axis)
Figure 3Impedance Curve
Figure 4Dimension Line Drawing

Eliminator
®
Monitor
Eliminator®Monitor
5
HORIZONTAL
VERTICAL
Figure 6Beamwidth vs. Frequency
(anechoic environment)
Scale - 5 dB per division
Figure 5One-Third-Octave Polar
Responses (anechoic environment,
4 volts/6.10 meters (20 feet))

Eliminator®Monitor
Eliminator
®
Monitor
6
SPEAKERSMonitors Part Number 5353080002
600 Cecil Street, Buchanan, MI 49107
616/695-6831, 616/695-1304 Fax


Telex Communications, Inc., 2000  Litho in U.S.A.
Directivity Index Di,
(Di= 10 log10 R(Q)) 800- to 16,000-Hz
Median (see Figure 7):
12.0 dB (+4.0 dB, -3.6 dB)
Distortion, 0.1 Full Power Input, (see
Figure 2)
Second Harmonic,
100 Hz:
27 dB, 4.7%
1,000 Hz:
35 dB, 1.8%
10,000 Hz:
19 dB, 11.4%
Third Harmonic,
100 Hz:
36 dB, 1.6%
1,000 Hz:
44 dB, 0.6%
10,000 Hz:
34 dB, 2.1%
Transducer Complement,
Low Frequency:
DL15BFH
High Frequency:
DH2010A driver
HP85M constant-directivity horn
Box-Tuning Frequency:
60 Hz
Crossover Frequency:
2,000 Hz
Crossover Slope:
12 dB per octave
Impedance, (see Figure 3)
Nominal:
8 ohms
Minimum:
5.1 ohms
Input Connections:
Two parallel 1/4-inch phone jacks
(Two parallel Neutrik Speakon®
NL4MP connectors on Eliminator
Monitor (E))
Enclosure Materials and Colors:
Black carpet-covered Road-Wood
Black perforated metal grille
Dimensions (see Figure 4)
Width:
640 mm (25.39 in.)
Height:
406 mm (15.98 in.)
Depth:
471 mm (18.53 in.)
Net Weight:
19.5 kg (43 lb)
Shipping Weight:
22.7 kg (50 lb)
Figure 7Directivity vs. Frequency
(anechoic environment)
Specifications
Typical Axial Frequency Response, Swept
Sine Wave, 4 volts at 3.05 meters (10
feet), (anechoic environment, normalized
for 1 watt at 1 meter; see Figure 1):
77-20,000 Hz (half space)
Low-Frequency 3-dB-Down Point:
77 Hz (half space)
Usable Low-Frequency Limit (10-dB-
down point):
65 Hz (half space)
Efficiency:
3.3%
Long-Term Average Power-Handling
Capacity per EIA Standard RS-426-A
1980 (see Power-Handling Capacity
section):
350 watts
Maximum Woofer Acoustic Output:
8.3 watts
Sensitivity (SPL at 1 watt, 1 meter input,
anechoic environment, swept sine wave):
99 dB
Dispersion Angle Included by 6-dB-
Down Points on Polar Responses,
Indicated One-Third-Octave Bands of
Pink Noise (see Figure 6),
4,000-20,000 Hz, Horizontal:
55° (+18°, -9°)
4,000-20,000 Hz, Vertical:
80° (+21°, -21°)