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Operation Manual
M Series Power Amplifiers
page 20
Performance M120 M240
Damping Factor (8 ohm): 10 Hz to 400 Hz > 400 > 400
Crosstalk (below rated power, 20 Hz to 20 kHz) > 55 dB > 55 dB
Common Mode Rejection (CMR)(20 Hz to 1 kHz) > 70 dB > 70 dB
DC Output Offset (Shorted input) ± 10 mV ± 10 mV
Input Impedance (nominally balanced, nominally unbalanced) 20 kilohms, 10 kilohms 20 kilohms, 10 kilohms
Load Impedance (Note: Safe with all types of loads)
Stereo
Bridge Mono
2-8 ohms
4-8 ohms
2-8 ohms
4-8 ohms
Voltage Gain (at maximum level setting) 30.5-dB gain at 1.4-volt sensitivity
26-dB gain at 2.34-volt sensitivity
32.1-dB gain at 1.4-volt sensitivity
26-dB gain at 2.83-volt sensitivity
AC Line Voltage and Frequency Configurations Available (± 10%) 230/240 VAC and 50/60 Hz 230/240 VAC and 50/60 Hz
AC Line Current (both amplifiers draw no more than 90 watts at idle) 3.5 A 5.0
Construction M120 M240
Ventilation Flow-through ventilation from front to back Flow-through ventilation from front to back
Cooling Proportional speed fan Proportional speed fan
Dimensions EIA Standard 19-inch rack mount width (EIA
RS-310B), 5.25-inch (13.34-cm) height and
12.25-inch (31.11-cm) depth behind front
mounting surface
EIA Standard 19-inch rack mount width (EIA
RS-310B), 5.25-inch (13.34-cm) height and
12.25-inch (31.11-cm) depth behind front
mounting surface
Weight
Net
Shipping
32.6 pounds (14.79 kg)
38.6 pounds (17.49 kg)
40.3 pounds (18.28 kg)
46.3 pounds (20.98 kg)
7 Specifications