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Appendix A Crest Audio CA Series Power Amplifiers
Models CA2, CA4, CA6, CA9, CA12, CA18
Appendix A - Amplifier Specifications
1kHz, 0.01% THD+N
8Ω Stereo Power
4Ω Stereo Power
2Ω Stereo Power
8Ω Bridged Mono Power
4Ω Bridged Mono Power
20Hz-20kHz, 0.1% THD+N
8Ω Stereo Power
4Ω Stereo Power
2Ω Stereo Power
8Ω Bridged Mono Power
4Ω Bridged Mono Power
Max RMS Output Voltage (each channel)
Max Peak Output Voltage
Frequency Response (+0 / -0.3dB, 1W/8Ω)
Power Bandwidth (rated power at 4Ω, 1%THD+N)
TourClass Protection
THD+N
(rated power, 4Ω/1kHz)
SMPTE IMD (rated power, 8Ω, 60 Hz & 7kHz)
Damping Factor (10-400Hz at 8Ω)
Input CMRR (1kHz)
Standard Input Sensitivity (rated power at 8Ω) ‡
Standard Voltage Gain (rated power @ 8Ω) ‡
Input Impedance (balanced/unbalanced)
Hum and Noise ("A" weighted, full power at 4Ω)
Crosstalk ("A" weighted, full power at 4Ω)
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 cond., 120V/4Ω)
1/3 Power Curr. Draw (cont. music cond., 120V/4Ω)
Max Curr. Draw (continuous music cond., 120V/4Ω)
Thermal Emissions (1/8 Power, 4Ω)
Thermal Emissions (1/3 Power, 4Ω)
Cooling
Controls
LED Indicators (per channel)
Construction
Dimensions
(Height x Width x Depth to rear rack ears)
Gross Weight
Net Weight
Warranty
160W
250W
N/A
500W
N/A
150W
200W
N/A
450W
N/A
44V
62V
20Hz-20kHz,
-3dB@135kHz
20Hz-20kHz, -.9dB/+.15dB
<0.01%
<0.01%
368:1
> - 60 dB
0.775V
X45
>20kΩ/>10kΩ
-105dB
> - 60dB
AB
20,000 µF
100V-240V, 50-60Hz
1.2A
3.25A
5.5A
9.0A
1119 BTU/hr
1607 BTU/hr
3.5" x 19" x 18"
89 x 483 x 457mm
38 lbs. (17.25 kg)
33 lbs. (14.98 kg)
5 years*
250W
435W
500W
830W
1000W
245W
400W
450W
800W
900W
58V
82V
20Hz-20kHz,
-3dB@135kHz
20Hz-20kHz, -.9dB/+.5dB
<0.01%
<0.01%
550:1
> - 60 dB
0.775V
X61
>20kΩ/>10kΩ
-105dB
> - 60dB
AB
27,200 µF
100V-240V, 50-60Hz
1.4A
6.8A
10.0A
15.0A
2030 BTU/hr
2726 BTU/hr
3.5" x 19" x 18"
89 x 483 x 457mm
46 lbs. (20.88 kg)
41 lbs. (18.61 kg)
5 years*
400W
600W
750W
1200W
1500W
350W
500W
600W
1000W
1200W
73V
103V
20Hz-20kHz,
-3dB@135kHz
20Hz-20kHz, -1.1dB/+0dB
<0.01%
<0.01%
400:1
> - 60 dB
0.775V
X68
>20kΩ/>10kΩ
-105dB
> - 60dB
H
68,000 µF
100V-240V, 50-60Hz
1.6A
6.0A
13.0A
18.0A
2630 BTU/hr
3713 BTU/hr
3.5" x 19" x 18"
89 x 483 x 457mm
49 lbs. (22.24 kg)
44 lbs. (19.97 kg)
5 years*
600W
900W
1000W
1800W
2000W
550W
800W
900W
1600W
1800W
82V
116V
20Hz-20kHz,
-3dB@135kHz
20Hz-20kHz, -.84dB/+0dB
<0.01%
<0.01%
700:1
> - 60 dB
0.775V
X86.5
>20kΩ/>10kΩ
-105dB
> - 60dB
H
80,000 µF
100V-240V, 50-60Hz
2.0A
8.6A
16.0A
21.0A
3250 BTU/hr
4341 BTU/hr
3.5" x 19" x 18"
89 x 483 x 457mm
52lbs. (23.60 kg)
47 lbs. (21.33 kg)
5 years*
700W
1200W
1400W
2400W
2800W
650W
1100W
1100W
2200W
2200W
90V
126V
20Hz-20kHz,
-3dB@135kHz
20Hz-20kHz, -.23dB/+.85dB
<0.01%
<0.01%
800:1
> - 60 dB
0.775V
X97.5
>20kΩ/>10kΩ
-105dB
> - 60dB
H
140,000 µF
100V-240V, 50-60Hz
2.8A
10.5A
23.0A
30.0A
4750 BTU/hr
6300 BTU/hr
5.25" x 19" x 18"
133 x 483 x 457mm
72 lbs. (32.68 kg)
67 lbs. (30.42 kg)
5 years*
1000W (.03% THD+N)
1800W (.03% THD+N)
2500W (.03% THD+N)
3600W (.03% THD+N)
5000W (.03% THD+N)
950W
1700W
2400W
3400W
4800W
99V
140V
20Hz-20kHz, -
3dB@150kHz
20Hz-20kHz, -.2dB/+.2dB
<0.03%
<0.01%
800:1
> - 70dB
0.775V
X115
>20kΩ/>10kΩ
-115dB
> - 80dB
H
144,000 µF
100V-240V, 50-60Hz
3.0A
12.0A
25.0A
36.0A
7125 BTU/hr
9450 BTU/hr
5.25" x 19" x 18"
133 x 483 x 457mm
82 lbs. (37.23 kg.)
77 lbs. (34.96 kg.)
5 years*
† For full power at 4 Ohms. ‡ See table below for optional settings. * 3-Year Warranty with 2 additional years if Registration Card is sent to Crest Audio. (USA, Canada, United Kingdom and many other countries).
Crest Audio reserves the right to make changes or improvements in manufacturing or design which may affect specification. ©1997 Crest Audio Inc. 10/13/97
ACL, IGM, AutoRamp, short circuit, DC voltage, turn-on/off transient, current inrush, sub/ultrasonic input
Female XLR (pin 2+, configurable for pin 3+), TRS (tip+)
5-way binding posts (2 pair on CA18) or Speakon connectors (market dependent)
Steel chassis, 16 gauge. Double thickness in rack ear areas.
Clip/Limit, Signal, Temp/DC, Active
Front panel: 2 attenuators, magnetic circuit breaker/power switch; Rear panel: signal ground lift & mode switches; CA18: XLR polarity & input sens./voltage gain switches)
Two rear panel variable speed DC fans, filters detatchable without tools
CA2 CA4 CA6 CA9 CA12 CA18
Gain
Sens Gain Sens Gain Sens Gain Sens Gain Sens Gain Sens
Factory Standard X45 .775V X61 .775V X68 .775V X86.5 .775V X97.5 .775V X115 .775V
Option 1 X40 .866V X40 1.12V X40 1.32V X40 1.66V X40 1.87V X40 2.24V
Option 2 X20 1.73V X20 2.24V X20 2.65V X20 3.32V X20 3.74V X20 4.47V