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M250 Amplifier Instructions for Use Page 8 of 8
Issue 4: May 2002
SPECIFICATIONS :
Output voltage, RMS 45 Volts 20Hz to 20kHz
peak 127 Volts
Power output 250 Watts into 8 Ohms (24dBW)
450 Watts into 4 Ohms
Peak-to-peak output current 72 Amps
Damping factor 180
Output devices per channel 6
Total Harmonic Distortion + noise 0.006% at 1kHz up to 90% power, into 4 or 8 Ohms
Intermodulation distortion 0.004% at 12.5 Watts into 8 Ohms
Frequency response 20Hz to 20kHz ±0dB
10Hz to 100kHz +0 / -1.5dB
Audio gain 30dB (31.5 times) nominal
Input impedance 31K Ohm
Input sensitivity for full power output into 8 Ohms 1.42 Volts
Signal / noise ratio, reference full power output > 115dB “A”- weighted
Input 1 RCA connector
Outputs 1 amplifier channel via 2 pairs of speaker binding posts
1 RCA loop output socket
Power requirements 100 / 115 / 230V AC, 50 / 60Hz (factory preset)
1000 Watts maximum into 8 Ohms load
70 Watts idle
Dimensions 192 mm, 7.6 inches wide
125 mm, 4.9 inches high including feet
460 mm, 18.1 inches deep including terminals
Weight 12 kg, 26.4 lbs unit only, unboxed
14 kg, 30.8 lbs in shipping carton
Standard accessories IEC type mains lead
Musical Fidelity reserves the right to make improvements which may result in specification or feature changes without notice.
M250
Monobloc Amplifier