Appendix B: Technical Info
M-Series Specifications
M•2000 M•3000 M•4000
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 525 800 1050
40 Hz-20 kHz into 2 ohms per channel 800 1200 1600
Bridge Mono: 20 Hz-20 kHz into 8 ohms 1050 1600 2100
Bridge Mono: 40 Hz-20 kHz into 4 ohms 1600 2400 3200
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 650 1000 1300
1 kHz @ 1% THD into 2 ohms per channel 1000 1500 2000
Bridge Mono: 1 kHz @ 1% THD into 8 ohms 1300 2000 2600
Bridge Mono: 1 kHz @ 1% THD into 4 ohms 2000 3000 4000
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 measurement 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.
325
400
475
600
650
800
Owner’s Manual
Power Bandwidth (rated power into 4 ohms):
20 Hz to 20 kHz
(Output power typically –3 dB at 50 kHz. Amplifier protection circuits 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 < 0.05% @ 8Ω
< 0.10% @ 4Ω
< 0.20% @ 2Ω
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)
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
Owner’s Manual
23
High Frequency Overload and Latching:
M•2000
WEIGHT
41 lbs.
(18.6 kg)
17.1 in/435 mm
3.5 in/88 mm
19.0 in/483 mm
17.6 in/446 mm
OL
-3
-6
-9
-20
SIG
OL
-3
-6
-9
-20
SIG
2
INTERNAL
STATUS
INTERNAL
STATUS
PROTECT
SHORT
OVER TEMP
PROTECT
SHORT
OVER TEMP
OO
MAXMAX
OO
1
M.2000
POWER
HI G H E F F I CI E N C Y P O W ER A M PL I F I ER
No latch up at any frequency or level.
High Frequency Stability:
Unconditionally stable driving any resistive or reactive load.
Turn On Delay:
3 seconds
High-Pass Filter:
150 Hz, 2nd-Order Butterworth
Low-Pass Filter:
150 Hz, 2nd-Order Butterworth
Limiter Section:
Complementary Positive and Negative Peak Detecting
Indicators:
Power ON LED (in power switch)
6 meter LEDs per channel
SIG (Signal Present), –20, –9, –6, –3, OL (Overload)
CH 1 & 2
PROTECT LEDs, SHORT LEDs, OVER TEMP LEDs
AC Line Power:
U.S./Canada 120VAC, 60Hz
Europe 240VAC, 50Hz
(Factory configured)
Physical:
M•2000
Height 3.5 in/88 mm
Width 19.0 in/483 mm
Depth 15.7 in/398 mm
Overall Depth 17.1 in/435 mm
Weight 41 lb/18.6 kg
M•3000
Height 3.5 in/88 mm
Width 19.0 in/483 mm
Depth 18.1 in/460 mm
Overall Depth 19.5 in/497 mm
Weight 48 lb/21.8 kg
M•4000
Height 3.5 in/88 mm
Width 19.0 in/483 mm
Depth 18.1 in/460 mm
Overall Depth 19.5 in/497 mm
Weight 53 lb/24.0 kg
LOUD Technologies Inc. is always striving to improve our products by incorporating new and improved materials, components,
and manufacturing methods. Therefore, we reserve the right to
change these specifications at any time without notice.
“Mackie.” and the “Running Man” are registered trademarks of
LOUD Technologies Inc. All other brand names mentioned are
trademarks or registered trademarks of their respective holders, and are hereby acknowledged.
©2006 LOUD Technologies Inc. All Rights Reserved.
AC Drop-out Voltage:
At approximately 65% of rated line voltage
M-Series Dimensions