Com-Tech 200 Maximum Power Matrix - Crown Com-Tech CT-1600 Reference Manual

Maximum Power Specifications
Crown's maximum power specifications represent the largest amount of output power you can expect from your amplifier
when it is driven to full output under the given conditions. These specifications can be used to prevent loudspeaker and
hearing damage.
The maximum power matrices include specifications for single cycle and 40 millisecond burst sine waves. Burst signals
act like large transient peaks that are present in common source signals. Loudspeakers can respond to a single cycle
burst, so the single cycle burst specifications should be used to help you protect your loudspeakers. In contrast, a
40 millisecond burst represents the typical response time of the human ear. Your ear will not respond to the entire
dynamic change of a burst that lasts less than 40 milliseconds.
The burst power specifications are provided at 0.05% THD which is a practical low distortion condition. Operating the
amplifier at levels higher than 0.05% THD can result in output power levels that are higher than those listed in the
maximum power matrices.
Dual/Mono
Mode
4
Dual
8
(both channels
driven)
50 (70V)
8
Bridge-Mono
16
(balanced output)
100 (140V)
2
Parallel-Mono
4
25 (70V)
4
Dual
8
(both channels
driven)
50 (70V)
8
Bridge-Mono
16
(balanced output)
100 (140V)
2
Parallel-Mono
4
25 (70V)
4
Dual
8
(both channels
driven)
50 (70V)
8
Bridge-Mono
16
(balanced output)
100 (140V)
2
Parallel-Mono
4
25 (70V)
Fig. 6.5 Com-Tech 200 Maximum Power Matrix
Page 36
Com-Tech 200 – Maximum Power (Watts)
Single Cycle Tone Burst
At less than 0.05% THD
(See note 1)
20 Hz 50 Hz 1 kHz
170 205 275
130 145 165
130 135 140
355 400 535
255 280 325
255 270 275
345 405 520
255 280 315
255 270 280
165 220 310
125 155 185
140 150 150
325 435 600
250 300 360
275 295 305
325 425 580
245 305 355
275 295 305
165 225 315
130 155 185
140 150 155
330 440 625
250 310 370
305 310 315
315 425 595
250 305 365
280 295 305
Com-Tech 200/400/800/1600 Power Amplifiers
40 Millisecond Tone Burst
At 0.05% THD
(See note 2)
7 kHz 50 Hz 1 kHz
275 175 155
165 130 115
135 130 125
530 345 310
320 250 225
265 255 250
520 300
345
315 245 220
265 255 245
305 190 165
180 135 125
145 140 135
605 380 325
360 265 245
290 275 265
585 360 310
355 265 235
290 275 265
310 190 165
185 140 125
150 140 135
375
625 325
370 270 245
300 310 310
590 370 315
360 270 240
295 280 270
Maximum Power Notes:
All maximum power specifi-
cations are based on 0.5%
regulated AC mains with
THD of less than 1.0% and
7 kHz
an ambient room tempera-
165
ture of 70° F (21° C). Al-
though it is an unusual con-
120
dition, your amplifier can
130
function well with AC mains
325
voltages up to 10% over the
specified line voltage. With
240
overvoltage conditions, your
255
amplifier may be capable of
315
delivering instantaneous
230
power levels up to 20%
greater than the specifica-
255
tions in the matrix.
175
1. A single cycle sine wave
130
is presented to the ampli-
140
fier and monitored for
345
nonlinear distortion. The
average power during the
255
burst is reported. Loud-
275
speakers must be able to
335
withstand this level if they
are to be safely used with
250
this amplifier.
275
2. A 40 millisecond sine wave
175
burst (10 percent duty
130
cycle) is presented to the
140
amplifier and monitored for
nonlinear distortion. Aver-
345
age power during the
260
burst is reported. This
300
power level is a measure-
335
ment of the amplifier's
maximum transient power
255
that can be perceived by
280
the human ear.