v. 2.2 3/25/97 B5000002
Crest Audio Inc.
100 Eisenhower Dr., Paramus NJ 07652 USA
TEL
: 201.909.8700
FAX
: 201.909.8744
http://www.crestaudio.com
Printed in USA
7 0 0 1 P O W E R A M P L I F I E R
S P E C I F I C AT I O N S
IN
A
IN
B
PIN
3+
A
B
SIGNAL
GROUND
LIFT
USA ONLY
MODEL #
MAXIMUM
INPUT CURRENT
@ 120V, 60Hz
OUTPUT POWER
IN WATTS PER
CHANNEL, 2
Ω
OUTPUT - CLASS 2 WIRING MAY BE USED
7001
21 AMPS
850W
Designed & manufactured in the USA by:
Crest Audio Inc.
100 Eisenhower Dr.
Paramus, New Jersey 07652 USA
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION
AVIS : RISQUE DE CHOC ÉLECTRIQUE—NE PAS OUVRIR
WARNING TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK DO NOT
EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE.
ATTENTION! POUR ÉVITER LE RISQUE D'INCENDIE OU DE CHOC
ÉLECTRIQUE, NE PLACEZ PAS CET APPAREIL SOUS LA PLUIE OU Á
L'HUMIDITÉ
+
--
BRIDGE
STEREO
BRIDGE
PARALLEL
OUT A
OUT B
PUSH
PUSH
Rear View
1kHz, <0.02% THD+N
20Hz-20kHz, <0.05% THD+N
560W
550W
810W
715W
1650W
1510W
850W
850W
1700W
1600W
83V
117V
20 Hz-20 kHz, -3dB @ 53kHz
20 Hz-20 kHz, +0/-0.2dB
Clip Limit, IGM, AutoRamp, High Temp, short-circuit,
DC voltage, turn-on/off transient, sub/ultrasonic input.
<0.02%
<0.1%
400:1
>60 dB
1.4V RMS
X40
>20k
Ω
/10k
Ω
> -100 dB
> -60dB
H
Female XLR (pin 3+), Octal Socket
5-way output binding posts
80,000 µF
100V-240V, 50-60Hz
1.4A
7.8A
15.5A
21.0A
2503 BTU/hr
4505 BTU/hr
Rear to front tunnel heatsink, 2 variable speed DC fans
Front panel: 2 attenuators, circuit breaker/power switch;
Rear panel: mode switch, signal ground lift jumper.
Clip/Limit, Signal, Temp/DC, Active
16 ga. single piece steel chassis, .187" (5mm) alum. front panel
3.5"x19"x15" (16" to rear ears)
89mm x 483mm x 381mm (406mm to rear ears)
57 lbs. (25.88 kg.), 52 lbs. (23.60 kg.)
5 years, parts and labor†
8
Ω
Stereo Power
4
Ω
Stereo Power
8
Ω
Bridged Mono Power
2
Ω
Stereo Power
4
Ω
Bridged Mono Power
Max RMS Output Voltage
(each channel)
Peak Output Voltage
(each channel)
Frequency Response
(+0 / -0.3dB, 1W/8
Ω
)
Power Bandwidth
(rated power at 4
Ω
, 1% THD+N)
Protection Circuitry
THD+N
(rated power at 4
Ω
, 1kHz)
SMPTE IMD
(rated power at 8
Ω
, 60Hz & 7kHz)
Damping Factor
(10-400Hz at 8
Ω
)
Input CMRR
(1kHz)
Input Sensitivity
(rated power at 4
Ω
)
Voltage Gain
Input Impedance
(balanced/unbalanced)
Hum and Noise
(“A” weighted, full power, 4
Ω
)
Crosstalk
(“A” weighted, full power, 4
Ω
)
Class
Input Connectors
(per channel)
Output Connectors
(per channel)
Filter Storage
Power Supply
(factory configured)
Idle Current Draw
(120V)
1/8 Power Curr. Draw
(typical music, 120V/4
Ω
)
1/3 Power Curr. Draw
(continuous music, 120V/4
Ω
)
Max Curr. Draw
(circuit breaker rating, 120V/4
Ω
)
Thermal Emissions
(1/8 Power, 4
Ω
)
Thermal Emissions
(1/3 Power, 4
Ω
)
Cooling
Controls
LED Indicators
(per channel)
Construction
Dimensions
(Height x Width x Depth)
Gross Weight, Net Weight
Warranty
† USA, Canada, U.K., and many other countries. Power figures are watts per channel, both channels driven. Crest Audio reserves the right
to make improvements in manufacturing or design which may affect specifications. Crest Audio specification literature is available in
downloadable PDF file format; visit our website at http://www.crestaudio.com. ©1997 Crest Audio Inc. 5/21/97
*B5000002*
Architect’s & Engineer’s Specifications
The power amplifier shall have two channels. Each chan-
nel shall deliver a minimum of 550 watts at 8 ohms, 715
watts at 4 ohms and 850 watts at 2 ohms; per channel, both
channels driven, 20Hz-20kHz, <0.05% THD+N. In
bridged mono mode, it shall deliver a 1510 watts at 8
ohms, and 1600 watts at 4 ohms, 20 Hz-20kHz, <0.05%
THD+N.
The amplifier shall be rear-to-front tunnel-cooled, with two
variable-speed DC fans.
The amplifier shall have circuitry to protect itself and the
speaker load from output short circuits, DC voltage on out-
puts, and thermal overload. The amplifier shall include cir-
cuitry to gradually increase gain to attenuator setting lev-
els when the amplifier is turned on, and circuitry for
impedance sensing and clip limiting.
The amplifier shall have a voltage gain of X40 with an
input sensitivity of 1.4V for rated power at 4 ohms. The
hum and noise level shall be greater than 100 dB below
rated output, “A” weighted. SMPTE IMD shall be less
than 0.1%, rated power at 8
Ω
, 60Hz &7kHz. The amplifier
shall have a class H output stage with a modulated power
supply. The frequency response shall be greater than
20Hz-20kHz, +0/-0.3dB (1W/8
Ω
).
The amplifier shall operate at 100-240V, 50-60 Hz AC
(configured at factory). Maximum current draw shall not
exceed 21 amperes at 120VAC, (circuit breaker limited),
with both channels driving continuously into a 4 ohm resis-
tor.
The amplifier front panel shall include Active, Temp/DC,
Signal Present and Clip/Limit LED indicators for each
channel, a combination power switch/magnetic circuit
breaker and recessed and detented gain pots.
Rear panel input connectors shall be actively balanced and
have female XLR-type, 3-pin connectors (pin 3+). Output
connectors shall be 5-way output binding posts. Octal
sockets for optional accessory modules and a
signal/ground lift jumper shall be provided.
A rear-panel AC mains cord having an appropriate AC
plug for the intended operating voltage shall be provided
(market dependent).
The packaging of the amplifier shall allow for standard
rack mounting without requiring space between similar
units. Dimensions shall be 3.5" (89mm) high x 19"
(483mm) wide x 15" (381mm) deep. It shall weigh 52.0 lbs.
(23.6kg) net. The amplifier shall be designated the Crest
Audio Model 7001.
