Electro-Voice 2.0kW User manual

2.0kW
Lightweight Power
Amplifier
• 550 watts per channel at 8 ohms,
900 watts per channel at 4 ohms,
1,850 watts per channel at 8 ohms
in bridge mode
• Dynamic Signal ProcessingTM
provides excellent low-frequency
performance
• Ultralightweight—only 25 pounds
• Conservative thermal design
ensures low-operating temperature
• Class H circuitry
• Dual-Mono Construction
• Separate switch-mode power
supply for each channel
• Three-year parts-and-labor warranty
Description
The Electro-Voice 2.0kW is a very high-
quality amplifier designed to provide maxi-
mum sonic quality with minimum weight.
Its built-in Dynamic Signal ProcessingTM
extracts maximum performance from any
full-range speaker system.
Each channel of the 2.0kW can deliver more
than900wattsintoa4-ohmload,or550watts
into an 8-ohm load at less than 1% THD at 1
kHz. In bridge mode, the amplifier deliv-
ers more than 1,850 watts into an 8-ohm
load.
The 2.0kW design features an innovative
Class H operation. Class H operation allows
a primary compliment of output devices to
operate in low-power situations, as larger
power requirements are made of the ampli-
fier, a secondary group of output devices are
pressed into operation. Class H operation
offers the ability to supply large amounts of
power with excellent efficiency and reduces
the potential for heat buildup inside the am-
plifier chassis.
Thehigh-speed switch-mode power supplies
in the 2.0kW hold the secret to the light
weight of the amplifier. Each channel of the
amplifier has a separate power supply that
switches at a rate of 84,000 times per sec-
ond, which allows the toroidal transformers
to be significantly downsized. The smaller
transformers substantially decrease the
weight of the amplifier and also lower the
amount of heat created inside the amplifier.
Heat is a major contributor to the failure of
electronic equipment and the 2.0kW utilizes
a thermal system that effectively removes
heat from the amplifier. Each channel of the
2.0kW has a totally separate heat sink more
than 18 inches in length that runs down each
side of the amplifier. Placing the heat sinks
on opposite sides of the amplifier chassis
avoids creating an area of concentrated heat,
and makes removal of heat a much easier
job. Each channel is also equipped with a
continuously variable speed fan to remove
the heat and the fans are quiet enough to be
used in noise-sensitive situations.
The 2.0kW employs extensive protection
circuitrythatguards the amplifier and its load
from problems. Protection circuits guard
against overtemperature,turnon/offtransients,
shortedoutputs,radio-frequencyinterference
and dc faults.
The operating status of the amplifier is in-
dicated by LED’s mounted on the front
panel.Each channel has anindependentpeak
indicator. Power on, bridge mode, protection
active and excessive heat situations are also
individually indicated via an LED on the
front panel of the amplifier.
The 2.0kW has electronically balanced
combo type input connectors that accept an
IEC 268 standard XLR-type connector, or a
1/4-inch phone plug. A parallel connection
for routing signal to additional amplifiers is
provided by a male XLR-type connector on
each channel.
An input routing switch that allows selec-
tion of either dual-channel operation or
bridge-mode operation of the amplifier is lo-
cated at the bottom of the rear panel, and
when engaged is flush with the panel to
prevent accidental bumping of the switch.
Output connectors are heavy-duty binding
posts that provide a secure connection via
banana plugs, or will accept wire up to
7AWG in size.
Detented potentiometers on the front panel of
the 2.0kW regulate the gain of the amplifier.
The different levels of attenuation are
indicated for each channel.
TheDynamicSignal ProcessingTM circuitry in

2.0kWLightweightPower Amplifier
2.0kWLightweightPowerAmplifier
allkW Seriesamplifierssets theirperformance
apart from other lightweight amplifiers. Two
switches on the rear of the amplifier select
the mode of operation of the processor and
a pole frequency that should be matched to
the tuning of a speaker system. This innova-
tive circuitry ensures that the transient re-
sponse of a speaker systems low-frequency
driver is accurately controlled and any phase
distortion is minimized. The three settings
available are LPN, B6 and Off. The LPN
setting is used for compact, vented speaker
systems other than those manufactured by
Electro-Voice. It is a second-order shelving
equalizer with a pole frequency of 50 Hz.
The B6 setting is specifically for Electro-
Voice speaker systems and supplies a 6 dB
boost at the selected pole frequency that is
flawlessly combined with an undamped
second-order high-pass filter to provide
maximum low-frequency impact and infra-
sonic protection. The B6 setting offers three
different peak-boost frequencies: 26 Hz, 43 Hz
and 60 Hz. The box tuning frequency of a
speaker system determines which pole fre-
quency is appropriate.
The 2.0kW has been evaluated and tested to
applicable ANSI/UL and CSA standards for
useintheU.S.andCanada.TheNRTL/Cmark
adjacent to the CSA mark signifies the prod-
uctmeetsapplicable standards in the U.S.and
Canada.
The 25-pound Electro-Voice 2.0kW delivers
professional-quality amplification. Long-
term reliability and maximum portability
make this amplifier the foremost choice
among mobile sound professionals.
Architects’ and Engineers’
Specifications
The power amplifier shall be a dual-channel
model of solid-state design employing high-
poweroutputdevicesinatrue-complimentary-
symmetryoutputcircuit.Itshallbe capable of
operating from a 120 V, 60 Hz or 220/240 V,
50 Hz ac line.
The amplifier shall contain sensing circuitry
to provide protection for the output transis-
tors against overtemperature, excessive out-
put voltage, radio-frequency interference,
shorted loads and excessive phase shift. The
load shall be similarly protected against start
up/shutdown transients, low ac line voltage,
and dc.
The power amplifier shall contain processing
circuitry that will ameliorate the phase and
transient response problems of the loud-
speaker. The built-in processor shall be ca-
pableofbeing adjusted for the enclosuretype
and low-frequency characteristics of the
connected speaker.
Rear-mounted panel controls shall include
an input routing switch for selecting dual/
stereo or parallel mono operation and two
switches for control of the processor. The
processor controls shall include a switch for
turning the processor off and selecting the
enclosure type and three selectable frequen-
cies for B6 alignment of 60 Hz, 43 Hz and
26 Hz.
Front-panel indicators shall include power
on, peak, overtemperature, protect active,
and bridge-mode. Front-panel controls shall
include a power switch and level controls
that shall be detented potentiometers with
accurate markings.
The power amplifier shall meet the follow-
ing performance specifications: maximum
input voltage, 7.75 V rms; input voltage for
rated output power into 4 ohms, shall be
.74 V rms; rated output power per channel,
greater than 700 watts into 4 ohms from
20 Hz to 20 kHz at less than 0.10 THD,
greater than 450 watts into 8 ohms from
20 Hz to 20 kHz at less than 0.10 THD,
greater than 1,400 watts into an 8 ohm
bridged load from 20 Hz to 20 kHz at less
than 0.10% THD; hum and noise shall be
greater than 100 dB (A weighted) below
rated output power; frequency response
shall be 12 to60kHz, +0/-3 dBr, any mode,
atanyoutput power up to rated outputpower;
damping factor shall be greater than 200 at
any frequency up to 1 kHz in dual mode with
an 8 ohm load; intermodulation distortion
(SMPTE) shall be less than 0.05% at rated
power in any mode into 8 ohms; operating
temperature shall be up to 50 °C ambient;
channelseparation shall begreaterthan50dB.
Dimensions shall be (H x W x D): 88.9 mm
(3.5 in.) x 482.6 mm (19 in.) x 469.9 mm
(18.5 in.). Net weight shall be 11.33 kg (25
lb). Color: dark gray with white nomencla-
ture.
The 2.0kW has been evaluated and tested to
applicable ANSI/UL and CSA standards for
useintheU.S.andCanada.TheNRTL/Cmark
adjacent to the CSA mark signifies the prod-
uctmeetsapplicable standards in the U.S.and
Canada.
The power amplifier shall be the
Electro-Voice 2.0kW.
Uniform 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,orin 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,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 EVI Au-
dio Service or any of its authorized service
representatives. Obtaining Warranty Ser-
vice:To obtain warranty service, a customer
must deliver the product, prepaid, to EVI
Audio Service or any of its authorized ser-
vice representatives together with proof of
purchase of the product in the form of a bill
of sale or receipted invoice. A list of autho-
rizedservicerepresentativesisavailablefrom
EVI Audio Service at 600 Cecil Street,
Buchanan,MI 49107 (800/234-6831 orFAX
616/695-4743). Incidental and Conse-
quential Damages Excluded: Product re-
pair or replacement and return to the cus-
tomer are the only remedies provided to the

2.0kWLightweightPowerAmplifier
2.0kWLightweightPower Amplifier
customer. Electro-Voice shall not be liable
for any incidental or consequential damages
including, without limitation, injury to per-
sons 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 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 Electronics are guaranteed
against malfunction due to defects in mate-
rials or workmanship for a period of three
(3) years from the date of original purchase.
Additional details are included in the Uni-
form Limited Warranty statement.
For warranty repair, service information, or
a listing of the repair facilities nearest you,
contactthe service repair departmentat: 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.

2.0kWLightweightPower Amplifier
2.0kWLightweightPowerAmplifier
ELECTRONICS—Power Amplifiers Part Number 534318— 9713
600 Cecil Street, Buchanan, MI 49107
616/695-6831, 616/695-1304 Fax
Specifications
Conditions:
1. 0 dBu = 0.775 V rms
2. Dual-mode ratings are for each
channel, both operating, unless noted
3. 120-volt ac line voltage maintained
throughout testing
Rated output power (20-20,000 Hz at
less than 0.1% THD, both channels
driven per EIA RS-490).
Dual mode, 4 ohms: 700 watts
Dual mode, 8 ohms: 450 watts
Bridged mode, 8 ohms: 1,400 watts
Rated output power (1 kHz, 1% THD,
both channels driven per EIA RS-
490).
Dual mode, 4 ohms: 900 watts
Dual mode, 8 ohms: 550 watts
Bridged mode, 8 ohms: 1,850 watts
Power Bandwidth, (at 1 kHz, +0/-1 dBr
where dBr equals rated output in any
mode): 20-20,000 Hz
Frequency response (+0/-3 dBr, any
mode, 1 kHz, 1 watt output): 12 Hz to
60 kHz
Voltage Gain, 1 kHz, Input Level
Controls Full Clockwise:
37 dB in 8- or 4-ohm dual-channel
mode; 43 dB in 8-ohm bridge mode
Maximum Input Level, 1 kHz:
8 V rms
Input Sensitivity (for rated full band
power):
Dual mode, 4 ohms: 0.76 V rms
Dual mode, 8 ohms: 0.86 V rms
Bridge mode, 8 ohms: 0.76 V rms
Input Impedance (per channel,
20-20,000 Hz), Balanced:
20,000 ohms
Phase Response (at rated power, any
mode):
at 20 Hz < 45 degrees
at 20 kHz > –40 degrees
THD Plus Noise at 1 kHz (at rated
power,measurement bandwidth 30 kHz):
<1.0%
IMD at rated power (SMPTE):
0.05%
Slew Rate, Any Mode:
30 V/uSec
Damping Factor, Any Mode:
> 200
Signal to Noise:
> 100 dBr measured below rated
output ( A weighted)
Channel Separation:
>50 dB
Amplifier Protection:
Shorted loads, rf interference, over
temperature
Load Protection:
Start-up/shutdown transients, DC
faults
Output topology:
Class H
Output Devices,
Total Number:
eight per channel
Pd (max) Rating:
200 W
Ic (collector current):
17 amps
Tj (max):
150 degree C
Power consumptin (both channels
operating, dual mode, with 1 kHz
sinewave input signal at stated output
power into 8 ohm loads:
Rated output power 1636 watts,
19.11 amps
Controls and Switches,
Rear,
Dynamic Signal ProcessingTM:
LPN, B6, Off; Pole frequency
60 Hz, 43 Hz, 26 Hz
Bridged-Mode Switch:
Bridged/normal
Front,
Power:
On/off
Two detented input level
controls
Front-Panel Indicators:
Peak/clip LED on each channel
Four LED’s that indicate power,
excessive temperature, protect status
and bridge mode
Connections,
Input:
Electronically balanced, 3-pin
female XLR and 1/4-inch phone
combination in parallel with 3-pin
male XLR-type output for signal
routing to multiple amplifiers; the
XLR connectors are wired accord-
ing to IEC 268 standard with pin 1
shield, pin 2 positive and pin 3
negative.
Output:
Binding post connectors that accept
banana plugs or up to 7AWG wire
Power:
12 gauge, 3 wire, permanently
attached power cable with plug
Operating Voltage:
120 V, 60 Hz ac or 220/240 V, 50 Hz
ac
Dimensions,
Height:
88.9 mm (3.5 in.)
Width:
482.6 mm (19.0 in.)
Depth:
469.9 mm (18.5 in.)
Color:
Dark gray
Net Weight:
25 lb
Shipping Weight:
31 lb