Crown PIP-ISO Informações Técnicas Página 31

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Macro-Tech 600/1200/2400 Power Amplifiers
Page 31
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 ampli-
fier at levels higher than 0.05% THD can result in output power levels that are higher than those listed in the maximum power
matrices.
8
2
Stereo
(both channels
driven)
Bridge-Mono
(balanced output)
Parallel-Mono
1
16
4
4
460
350
255
820
700
510
905
765
520
450
375
260
945
745
520
880
740
525
4
2
8
8
2
Stereo
(both channels
driven)
Bridge-Mono
(balanced output)
Parallel-Mono
1
16
4
4
4
2
8
Macro-Tech 600 –
Maximum Power (Watts)
Stereo-Mono
Mode
40 Millisecond Tone Burst
At 0.05% THD
(See note 2)
Single Cycle Tone Burst
At less than 0.05% THD
(See note 1)
50 Hz 1 kHz
Load (Ohms)
20 Hz 50 Hz 1 kHz 7 kHz 7 kHz
AC Mains120 VAC, 60 Hz UnitsInternational Units
460
430
280
910
860
565
920
865
560
495
475
310
970
950
620
915
960
610
475
575
325
930
1165
655
940
1155
650
505
615
350
985
1240
700
930
1230
700
495
560
320
940
1130
640
970
1120
635
515
605
345
990
1210
680
970
1225
675
460
375
245
910
750
510
920
750
510
490
415
270
970
825
545
915
845
540
430
340
235
855
685
465
860
690
465
460
370
250
915
730
500
895
735
505
455
355
245
895
710
485
890
710
485
490
385
260
960
770
525
940
765
530
Fig. 6.4 Macro-Tech 600 Maximum Power Matrix
Maximum Power Notes:
All maximum power specifications are
based on 0.1% regulated AC mains
and an ambient room temperature of
70° F (21° C). International units with
multi-tap transformers are specified
for the best-case transformer tap (nor-
mally 240 VAC, 60 Hz). Although it is
an unusual condition, your amplifier
can function well with AC mains volt-
ages up to 10% over the specified line
voltage. With overvoltage conditions,
your amplifier may be capable of de-
livering instantaneous power levels up
to 20% greater than the specifications
in the matrix.
1. A single cycle sine wave is pre-
sented to the amplifier and moni-
tored for nonlinear distortion. The
average power during the burst is
reported. Loudspeakers must be
able to withstand this level if they
are to be safely used with this am-
plifier.
2. A 40 millisecond sine wave burst
(10 percent duty cycle) is pre-
sented to the amplifier and moni-
tored for nonlinear distortion. The
average power during the burst is
reported. This power level is a
measurement of the amplifier’s
maximum transient power that can
be perceived by the human ear.
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