@crown
®
Power Amplifier Quick Reference
Com-Tech Calculated Data
tion of efficiency at 65%. Information
is only provided for the purpose of
getting an idea of current draw and
heat produced. Actual performance
will vary depending on environment,
program material, load, signal, and
AC mains voltage and frequency. Val-
ues of calculated AC mains current
draw are intended to represent aver-
age draw corresponding to the ther-
mal breaker requirements that should
be met. Peak current draw with dy-
namic program material may be sig-
nificantly higher. Thermal information
is provided to assist with calculating
air conditioning needs.
The above
data should not be construed as
specifications.
The information provided on this
page is
calculated data based on
driving both channels to rated out-
put using the 1 kHz Maximum Aver-
age Power rating method. Other pa-
rameters used in calculation include
a conservative idle current estimate
of 90 Watts (assumes maximum fan
speed) and a conservative estima-
Program
Material
Continuous Speech
Acoustic Music
Full Range Music
Compressed Music
Pink Noise
Waste Heat
(BTU/Hr)
370
420
480
540
600
Current Draw
at 100VAC
1.7A
2.3A
2.8A
3.4A
4.0A
Current Draw
at 120VAC
1.4A
1.9A
2.4A
2.8A
3.3A
Current Draw
at 220VAC
0.8A
1.0A
1.3A
1.6A
1.8A
Current Draw
at 240VAC
0.7A
1.0A
1.2A
1.4A
1.7A
CT-200 Worst Case Load: 4 Ohm/Ch
Program
Material
Continuous Speech
Acoustic Music
Full Range Music
Compressed Music
Pink Noise
Waste Heat
(BTU/Hr)
390
480
560
650
730
Current Draw
at 100VAC
2.0A
2.8A
3.7A
4.5A
5.4A
Current Draw
at 120VAC
1.6A
2.4A
3.1A
3.8A
4.5A
Current Draw
at 220VAC
0.9A
1.3A
1.7A
2.1A
2.5A
Current Draw
at 240VAC
0.8A
1.2A
1.6A
1.9A
2.3A
CT-400 Worst Case Load: 4 Ohm/Ch
Program
Material
Continuous Speech
Acoustic Music
Full Range Music
Compressed Music
Pink Noise
Waste Heat
(BTU/Hr)
500
675
850
1025
1200
Current Draw
at 100VAC
2.9A
4.7A
6.4A
8.4A
10.2A
Current Draw
at 120VAC
2.4A
4.0A
5.5A
7.0A
8.5A
Current Draw
at 220VAC
1.3A
2.2A
3.0A
3.8A
4.7A
Current Draw
at 240VAC
1.2A
2.0A
2.8A
3.5A
4.3A
CT-800 Worst Case Load: 4 Ohm/Ch
Program
Material
Continuous Speech
Acoustic Music
Full Range Music
Compressed Music
Pink Noise
Waste Heat
(BTU/Hr)
650
975
1300
1625
1950
Current Draw
at 100VAC
4.4A
7.7A
11.0A
14.3A
17.6A
Current Draw
at 120VAC
3.7A
6.4A
9.2A
11.9A
14.7A
Current Draw
at 220VAC
2.0A
3.5A
5.0A
6.5A
8.0A
Current Draw
at 240VAC
1.9A
3.2A
4.6A
6.0A
7.4A
CT-1600 Worst Case Load: 70V Mode
