Rear View/Binding Post Version; Specifications - Crest Audio CA18 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
(per channel) (market dependent)
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. 1.3 11/25/97 B5000020
C A 1 8 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, 0.03% THD+N
1000W
1800W
2500W
3600W
5000W
99V
140V
20Hz-20kHz, -3dB@150kHz
20Hz-20kHz, -.2dB/+.2dB
® Protection ACL, IGM, AutoRamp, short circuit, DC voltage,
turn-on/off transient, current inrush, sub/ultrasonic input.
<0.03%
<0.01%
800:1
> - 70dB
(1kHz)
.775V standard (switchable; see table below)
X115 standard (switchable; see table below)
>20kΩ/>10kΩ
-115dB
> - 80dB
Class
H
Female XLR (pin 2+, switchable for pin 3+), TRS (tip+)
(per channel)
Speakon connectors or 2 pair of 5-way output binding posts
144,000 F
100V-240V, 50-60Hz
3.0A
12.0A
25.0A
36.0A
7125 BTU/hr
9450 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 Switches: signal ground lift,
mode select, gain select, XLR input pin 2/3 hot (+)
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
82 lbs. (37.23 kg.), 77 lbs. (34.96 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
950W
- 20kHz, 0.1% THD+N, it shall deliver a minimum of 950 watts
1700W
per channel. At 4 ohms, 20Hz - 20kHz, 0.1% THD+N, it shall
2400W
deliver a minimum of 1700 watts per channel. In bridged mono
3400W
mode with an 8 ohm load, 20Hz - 20kHz, 0.1% THD+N, it
4800W
shall deliver a minimum of 3400 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 .775 volt, and shall be fitted with an external switch
which allows the gain to be altered to X20 or X40. The hum
and noise level shall be 115 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).
The amplifier will operate at 100V-240V, 50-60 Hz AC (config-
ured at factory). Maximum current draw shall not exceed 36
amperes at 120VAC (limited by front panel breaker).
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, rear-panel switchable for pin 2 (factory setting) or pin 3
positive. Output terminations shall be Speakon connectors or 2
pair of 5-way output binding posts (market dependent). Rear
panel switches for ground lift, Stereo/Parallel/ Bridged Mono
mode, XLR polarity and gain selection shall also be provided.
A rear-panel AC mains cord having an appropriate AC plug
for the intended operating voltage shall be provided.
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
shall be 19" (483mm) wide, 5.25" (133mm) high and 18"
(457mm) deep. The amplifier shall weigh 77 lbs. (34.96 kg.)
Gain Sens
net, and shall be designated the Crest Audio model CA18 .
X115 .775V
X40 2.24V
X20 4.47V
Designed & manufactured in the USA by:
GAIN
Crest Audio Inc.
100 Eisenhower Dr. Ø 40x 20x
Paramus, New Jersey 07652 USA dBu
A
+
A B
A
A
+
A
+
A B
XLR Pin +
A
A B
B
2 3
+ A B
B
B
1 2
3
Designed & manufactured in the USA by:
GAIN
Crest Audio Inc.
Ø 40x 20x
100 Eisenhower Dr.
Paramus, New Jersey 07652 USA dBu
NL4FC A
+
A
A B
A
A
A B
XLR Pin +
A A B
B
2 3
A B
B
B
1 2
3
*B5000020*
Crest Audio Inc.
100 Eisenhower Dr., Paramus NJ 07652 USA
: 201.909.8700 : 201.909.8744
TEL FAX
http://www.crestaudio.com