Crown Audio Specifications, M Series Power Amplifiers, page, Performance, M120, M240

M Series Power Amplifiers

7 Specifications

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	2-8 ohms	2-8 ohms
Bridge Mono	4-8 ohms	4-8 ohms
Voltage Gain (at maximum level setting)	30.5-dB gain at 1.4-volt sensitivity	32.1-dB gain at 1.4-volt sensitivity
	26-dB gain at 2.34-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

Ventilation

Cooling

Dimensions

Weight

Net

Shipping

M120	M240
Flow-through ventilation from front to back	Flow-through ventilation from front to back
Proportional speed fan	Proportional speed fan
EIA Standard 19-inch rack mount width (EIA	EIA Standard 19-inch rack mount width (EIA
RS-310B), 5.25-inch (13.34-cm) height and	RS-310B), 5.25-inch (13.34-cm) height and
12.25-inch (31.11-cm) depth behind front	12.25-inch (31.11-cm) depth behind front
mounting surface	mounting surface
32.6 pounds (14.79 kg)	40.3 pounds (18.28 kg)
38.6 pounds (17.49 kg)	46.3 pounds (20.98 kg)

page 20 Operation Manual