Technical Specifications

M600

M450

M300

Power Output

70V Mono 4-ohm

8-ohm

1200W @ 4 ohms 600W per channel* 400W per channel*

900W @ 5.5 ohms 450W per channel* 300W per channel*

600W @ 8 ohms 300W per channel* 200W per channel*

Input Sensitivity

At Backplane Connector or using Standard Input Module (incl.)**

1.161V for 600W @ 4 ohms

1.010V for 450W @ 4 ohms

0.840V for 300W @ 4 ohms

S/N Ratio (20kHz BW)

109 dB ref. 8 ohms, F.P.

106 dB ref. 8 ohms, F.P.

103 dB ref. 8 ohms, F.P.

Class of Operation

H

H

AB

Product Weight

46 lb.

44 lb.

41 lb.

Connectors: Power

Input Output

20A line cord***

15A line cord

15A line cord

Dependent on modules installed (stereo, high-impedance balanced input module w/screw terminals included) / RCA (Mono/70V mode, unbalanced)

5-pin "touch-proof" Barrier Strip, RCA Pre- & Post-EQ Output

Power Bandwidth

20 Hz to 40 kHz .5% THD

THD @ 1 kHz rated power

less than .02%

Load Impedance

4-8 ohms, 70V

Minimum Load Impedance (Stereo)

3.2 ohms

Frequency Response @ 1 watt

20 Hz to 20 kHz +/- 0.25 dB

Output Regulation, 1 kHz direct

1 kHz bridged

0.5 dB @ 8 ohms

1.5 dB @ 70V

Inputs (Plug-in modules)

Electronically balanced, high-impedance module standard, other modular input types available

AC Input Voltage Range

95 to 130V AC, 60Hz

Maximum AC Current

20A***

15A

12A

Indicators

Status (On/Protect/Sleep), Clip/Limit, Signal

Temperature Range

15 to 105 degrees F

Thermal Emissions

1913 BTU/hr.

1537 BTU/hr.

1195 BTU/hr.

Cooling

Forced Air Variable Speed Fan

Physical Dimensions (W x H x D)

17" X 3-1/2" x 18-1/2" (not including brackets)

Protection

RF, DC, Low-frequency, Thermal, Low-Impedance, Circuit-Breaker, Short Circuit

Special Features

Sleep Mode, Back-Slope regulation, Stereo, Dual Mono, 70V Mono Operation, Toroidal Power Transformer