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Operating Manual - MFA-8000 and MFA-6000 Power Amplifier
16
13. SPECIFICATIONS
13.1 Output Power
Per channel, both channels driven at 1KHz, < .1%
THD, 120VAC 60Hz
MFA-8000 MFA-6000
8Ω: 750W 525W
4Ω: 1200W 800W
2Ω: 1500W 900W
bridged mono mode
8Ω: 2400W 1600W
4Ω: 3000W 1800W (±1dB)
per channel from 20Hz to 12KHz*, < .25% THD
8Ω: 720W 450W
4Ω: 1100W 700W
13.2 Frequency Response:
± 0.2dB 20Hz - 20KHz
+0/-3dB 8Hz - 100KHz
13.3 Total Harmonic Distortion: < 0.025%
(720W [450W for MFA-6000] into 8Ω, 20Hz -
1KHz, increasing to < .25% at 12KHz)
13.4 Output Hum And Noise:
-105 dB from full output
(20Hz - 20KHz unweighted)
13.5 Damping Factor:
> 200 into 8Ω, 20Hz - 1KHz
13.6 Crosstalk:
-90dB, 20Hz - 1KHz
13.7 Input Sensitivity:
1 Vrms for full output (MFA-8000)
0.81 Vrms for full output (MFA-6000)
13.8 Voltage Gain:
80× = 38dB
13.9 Input Impedance:
20KΩ balanced
13.10 Amplifier Protection:
Fuseless Short-circuit protection, ultrasonic and
RF protection, advanced thermal protection.
13.11 Load Protection:
Turn-on delay relay with level ramp-up, DC fault
protection, ultrasonic limiting, clip limiting.
13.12 Cooling:
Forced air with 2-speed fan.
13.13 Indicators:
11 segment level meters with true clipping top
LED. LIMIT LED indicates when electronic
attenuator is active, THERM LED indicates a
higher than normal operating temperature and
PROTECT LED indicates when output relay is
open.
13.14 Power Requirements:
120 VAC, 50-60 Hz (240VAC available)
Maximum current draw for typical stereo
operation into 4Ω loads:
MFA-8000 MFA-6000
12 amps 10 amps
Idle current draw:
1.2 Amps 1 Amp
13.15 Size:
19"W x 5.25"H x 16.5"D
13.16 Shipping Weight:
68lbs. (61lbs.)
*Protection circuits will prevent full output
voltage above 12KHz.