Appendix B: Technical Info; M-Series Specifications - Mackie M-2000 Owner's Manual

Appendix B: Technical Info

M-Series Specifications
Continuous Average Output Power in watts, both channels driven
20 Hz-20 kHz into 8 ohms per channel
20 Hz-20 kHz into 4 ohms per channel
40 Hz-20 kHz into 2 ohms per channel
Bridge Mono: 20 Hz-20 kHz into 8 ohms
Bridge Mono: 40 Hz-20 kHz into 4 ohms
Maximum Output Power in watts, both channels driven
1 kHz @ 1% THD into 8 ohms per channel
1 kHz @ 1% THD into 4 ohms per channel
1 kHz @ 1% THD into 2 ohms per channel
Bridge Mono: 1 kHz @ 1% THD into 8 ohms
Bridge Mono: 1 kHz @ 1% THD into 4 ohms
Note: Power ratings are specified at 120VAC (U.S. and Canada) and 240VAC (Export) line voltages.
The M-Series power amplifiers draw large amounts of current from the AC line with continuous sine wave testing. Accurate mea-
surement of power requires a steady and stable AC supply. This means the line impedance must be very low to insure that the peak
AC line voltage does not sag to less than 97% of its value.
If driving highly reactive loads, we recommend that the limiter circuit be engaged.
Power Bandwidth (rated power into 4 ohms):
20 Hz to 20 kHz
(Output power typically –3 dB at 50 kHz. Amplifier protection cir-
cuits typically mute the output signal above 40 kHz at full power.)
Frequency Response (1 watt into 8 ohms):
< 10 Hz to 55 kHz (+0, –3 dB)
Distortion:
THD, SMPTE IMD
Signal-to-Noise Ratio:
> 107 dB below rated power into 4 ohms
Channel Separation:
> 80 dB @ 1 kHz
Damping Factor:
> 500 (8 ohms @ 400 Hz)
Input Impedance:
24 kΩ balanced
12 kΩ balanced
Input Sensitivity:
1.23 volts (+4 dBu) for rated power into 4 ohms
Gain:
M•2000 31.4 dB (37.3 V/V)
M•3000 33.3 dB (46.0 V/V)
M•4000 34.4 dB (52.7 V/V)
< 0.05% @ 8Ω
< 0.10% @ 4Ω
< 0.20% @ 2Ω
M•2000
325
525
800
1050
1600
400
650
1000
1300
2000
Maximum Input Level:
9.75 volts (+22 dBu)
Rise Time (8 ohms):
< 6 µs
Slew Rate:
M•2000
Voltage Slew Rate 50V/µs
Current Slew Rate 25A/µs at 2Ω
H-Switch Slew Rate 10-50V/µs (program dependent)
M•3000
Voltage Slew Rate 55V/µs
Current Slew Rate 27.5A/µs at 2Ω
H-Switch Slew Rate 16-70V/µs (program dependent)
M•4000
Voltage Slew Rate 60V/µs
Current Slew Rate 30A/µs at 2Ω
H-Switch Slew Rate 16-70V/µs (program dependent)
CMRR:
> 34 dB, 20Hz to 20kHz
Load Angle:
8(±jx) time independent at 8Ω
4(±jx) time dependent, T > 6 min. at 4Ω
2(1±jx) time dependent, T > 2 min. at 2Ω
Transient Recovery:
< 1µs for 10 dB overdrive @ 1kHz
Maximum Output Offset Voltage:
±50 mV
M•3000 M•4000
475 650
800 1050
1200 1600
1600 2100
2400 3200
600 800
1000 1300
1500 2000
2000 2600
3000 4000
Owner's Manual
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