Page 36
Macro-Tech 5002VZ
Power Amplifier
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.
Fig. 6.2 Maximum Power Matrix
Maximum Power Notes:
All maximum power specifica-
tions are based on 0.1% regu-
lated AC mains and an ambi-
ent room temperature of 70°
F (21° C). Although it is an
unusual condition, your ampli-
fier can function well with AC
mains voltages up to 10%
over the specified line volt-
age. With overvoltage condi-
tions, your amplifier may be
capable of delivering instan-
taneous power levels up to
20% greater than the specifi-
cations in the matrix.
1. A single cycle sine wave
is presented to the ampli-
fier and monitored for non-
linear distortion. The aver-
age power during the
burst is reported. Loud-
speakers must be able to
withstand this level if they
are to be safely used with
this amplifier.
2. A 40 millisecond sine wave
burst (10 percent duty
cycle) is presented to the
amplifier and monitored for
nonlinear distortion. The
average power during the
burst is reported. This
power level is a measure-
ment of the amplifier’s
maximum transient power
that can be perceived by
the human ear.
8
2
Stereo
(both channels
driven)
Bridge-Mono
(balanced output)
Parallel-Mono
1
16
4
4
4
2
8
8
2
Stereo
(both channels
driven)
Bridge-Mono
(balanced output)
Parallel-Mono
1
16
4
4
4
2
8
Macro-Tech 5002VZ –
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 Mains
120 VAC, 60 Hz
100 VAC, 50 Hz
8
2
Stereo
(both channels
driven)
Bridge-Mono
(balanced output)
Parallel-Mono
1
16
4
4
4
2
8
230 VAC, 50 Hz
2285
1820
1305
4905
4280
2770
4910
3885
2720
2305
1835
1245
4635
3685
2495
4600
3660
2490
2350
1845
1235
4995
3900
2590
4865
3865
2570
3070
2310
1440
6400
5035
3000
6765
5005
3025
3040
2380
1470
6030
4820
2940
6300
4785
2990
2930
2380
1425
6060
5065
2995
6250
4930
3025
3195
3220
1760
6605
6780
3695
6925
6740
3660
3085
3305
1800
6125
6670
3620
6455
6615
3595
3000
3205
1740
6155
6695
3655
6450
6635
3630
2460
1530
4815
3135
4550
2975
2060
1280
3985
2540
4090
2560
2125
1300
4155
2615
4345
2690
2825
2100
1330
5750
4455
2770
5925
4425
2770
2870
2080
1340
5935
4255
2740
5705
4310
2685
2905
2210
1365
6060
4615
2865
6145
4485
2795
2505
1940
1270
5320
4070
2670
5285
4045
2670
2415
1895
1265
4845
3805
2545
4865
3820
2565
2545
1925
1270
5310
4060
2665
5275
4025
2670
2440
1510
870
4815
3100
1815
4505
2975
1795
2040
1280
740
3945
2540
1485
4050
2560
1515
2125
1300
740
4155
2615
1535
4305
2690
1560
