Rear View; Specifications - Crest Audio CA12 Specifications

8Ω Stereo Power
4Ω Stereo Power
2Ω Stereo Power
8Ω Bridged Mono Power
4Ω Bridged Mono Power
Max RMS Output Voltage
(each channel)
Peak Output Voltage
(each channel)
Frequency Response
(+0 / -0.3dB, 1W/8Ω)
Power Bandwidth
(rated power at 4Ω, 1% THD+N)
TourClass
THD+N
(rated power at 4Ω, 1kHz)
SMPTE IMD
(rated power at 8Ω, 60Hz & 7kHz)
Damping Factor
(10-400Hz at 8Ω)
Input CMRR
Input Sensitivity
(rated power at 8Ω )
Voltage Gain
Input Impedance (balanced/unbalanced)
Hum and Noise
("A" weighted, full power, 4Ω)
Crosstalk
("A" weighted, full power, 4Ω)
Input Connectors
Output Connectors
Filter Storage
Power Supply
(factory configured)
Idle Current Draw 120V
1/8 Power Curr. Draw
(typical music, 120V/4Ω)
1/3 Power Curr. Draw
(continuous music, 120V/4Ω)
Max Curr. Draw
(circuit breaker rating, 120V/4Ω)
Thermal Emissions
(1/8 Power, 4Ω)
Thermal Emissions
(1/3 Power, 4Ω)
LED Indicators
Construction
Dimensions
(Height x Width x Depth)
Gross Weight, Net Weight
Dealer-Configurable Gain/Sensitivity Options

Rear View,

Binding Post
Version
Power figures are watts per chan-
nel, both channels driven.
* 3-Year Warranty with 2 addi-
tional years if Registration Card
is sent to Crest Audio. (USA,
Canada, United Kingdom, and
Rear View,
many other countries).
Crest Audio reserves the right to
Speakon
make improvements in manufac-
Version
turing or design which may affect
specification.
(not available in
Crest Audio specification litera-
North America)
ture is available in downloadable
PDF format; visit our website at:
http://www.crestaudio.com.
©1997 Crest Audio Inc.
v. 2.3 11/25/97 B5000019
C A 1 2 P OW E R A M P L I F I E R
S P E C I F I C AT I O N S
1kHz, 0.01% THD+N
700W
1200W
1400W
2400W
2800W
90V
126V
20Hz-20kHz, -3dB@135kHz
20Hz-20kHz, -.23dB/+.85dB
® Protection ACL, IGM, AutoRamp, short circuit, DC voltage,
turn-on/off transient, current inrush, sub/ultrasonic input.
<0.01%
<0.01%
800:1
> - 60dB
(1kHz)
0.775V standard (see table below)
X97.5 standard (see table below)
>20kΩ/>10kΩ
-105dB
> - 60dB
Class
H
Female XLR (pin 2+, dealer configurable for pin 3+), TRS (tip+)
(per channel)
5-way output binding posts or Speakon connectors
(per channel)
140,000 F
100V-240V, 50-60Hz
2.8A
10.5A
23.0A
30A
4750 BTU/hr
6300 BTU/hr
Cooling Back-to-front via 2 rear panel mounted variable-speed DC fans
(filters removable without tools)
Controls Front Panel: 2 attenuators
Rear Panel: signal ground lift switch, mode select switch
Clip/Limit, Signal, Temp/DC, Active
(per channel)
Steel chassis, 16 gauge. Double thickness in rack ear areas.
5.25" x 19" x 18" / 133 x 483 x 457mm
72 lbs. (32.68 kg.), 67 lbs. (30.42 kg.)
Warranty 5 years
*
Factory Standard
Option 1
Option 2
Architect's & Engineer's Specifications
20Hz-20kHz, 0.1% THD+N
The power amplifier shall have two channels. At 8 ohms, 20Hz
650W
- 20kHz, 0.1% THD+N, it shall deliver a minimum of 650 watts
1100W
per channel. At 4 ohms, 20Hz - 20kHz, 0.1% THD+N, it shall
1100W
deliver a minimum of 1100 watts per channel. In bridged mono
2200W
mode with an 8 ohm load, 20Hz - 20kHz, 0.1% THD+N, it
2200W
shall deliver a minimum of 2200 watts.
The amplifier shall have circuitry to protect itself from output
short circuits, thermal overload or other adverse load condi-
tions. The amplifier shall protect speaker loads from DC volt-
age on outputs. The amplifier shall have active clip limiting
and impedance sensing circuitry. Output relays shall protect
the speakers from amplifier failure.
Two rear panel mounted variable speed DC fans (filters
detachable without tools) shall provide back to front air flow
through the chassis.
Each channel shall have a standard (factory-set) input sensitiv-
ity of 0.775 Volts, and shall be fitted with an internal jumper
which allows the gain to be altered to X20 or X40. The hum
and noise level shall be 105 dB below rated output, "A"
weighted. SMPTE IMD shall be less than 0.01% at rated
power, 60Hz and 7kHz. The amplifier shall have a class H out-
put stage. The frequency response shall be 20Hz-20kHz, +0,
-0.3dB (1W/8Ω).
(market dependent)
The amplifier will operate at 100V-240V, 50-60 Hz AC (config-
ured at factory). Maximum current draw shall not exceed 30
amperes at 120VAC (limited by front panel breaker for bench
tests).
Front panel indicators shall include Active, Protect, Signal,
and Clip LED's for each channel. Front panel attenuators
shall be recessed and detented.
Rear panel input connectors shall be female TRS and XLR
type, internally dealer-configurable for pin 2 (factory setting)
or pin 3 positive. Output terminations shall be 5-way output
binding posts or Speakon output connectors (market depen-
dent). A ground lift switch and a Stereo/Parallel/Bridged Mono
mode operation switch shall be provided.
A rear-panel IEC AC mains socket (with power cord) or single
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.
Optional rack mount handles will be available. Dimensions
Gain Sens
shall be 19" (483mm) wide, 5.25" (133mm) high and 18"
X97.5 .775V
(457mm) deep. The amplifier shall weigh 67 lbs. (30.42 kg.)
X40 1.87V
X20 3.74V
net, and shall be designated the Crest Audio model CA12 .
CAUTION Designed & manufactured in the USA by:
RISK OF ELECTRIC SHOCK
DO NOT OPEN
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
Crest Audio Inc.
100 Eisenhower Dr.
Paramus, New Jersey 07652 USA
1 2+
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Designed & manufactured in the USA by:
Crest Audio Inc.
100 Eisenhower Dr.
Paramus, New Jersey 07652 USA
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NL4FC
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*B5000019*
Crest Audio Inc.
100 Eisenhower Dr., Paramus NJ 07652 USA
: 201.909.8700 : 201.909.8744
TEL FAX
http://www.crestaudio.com