Bogen M450 User Manual

Bogen’s M-Class delivers on what contractors need most: 

•

Reliability - Massive power toroid and heat sinks, heavy 14-gauge chassis, Back-Slope™ AC voltage

•

Flexibility - 3 modes of operation: 70V Mono, Dual Mono, or Stereo; 2 modular input bays

•

Power - up to 600W/ch stereo or 1200W of 70V mono power with low distortion and a high slew rate.

All this wrapped into 2 rack spaces of some of the best looking metal in the industry.

Three, Flexible Operating Modes

Flexible operating modes meet different installation needs.

70V Mono Mode

Dual Mono Mode

Stereo Mode

70V Mono Mode: Provides a single channel of output for
70V constant voltage speaker systems. Inputs form
a 2x1 mixer with the front panel controls determining
the signal levels from each input. 

Stereo Mode: In stereo mode, the front panel controls allow
independent operation of the two power amp channels.

Dual Mono Mode:  Dual mono provides the same mixer
operation as 70V Mono Mode, but with two amplifier
channels for low-impedance speaker systems. A balance
control is provided to adjust the overall volume level
between the two amplifier outputs.  Inputs form a 2x1
mixer with the front panel controls determining the signal 
levels from each input. 

* Both channels driven at nominal line voltage 120V AC, 60Hz.     ** Module set to Gain of 1.     *** Requires 20A, NEMA 5-20R Type Receptacle.

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*

1.161V for 600W @ 4 ohms

1.010V for 450W @ 4 ohms

0.840V for 300W @ 4 ohms

109 dB ref. 8 ohms, F.P.

106 dB ref. 8 ohms, F.P.

103 dB ref. 8 ohms, F.P.

H

H

AB

46 lb.

44 lb.

41 lb.

20A line cord***

15A line cord

15A line cord

Dependent on Modules installed (stereo, high-impedance balanced module w/screw terminals included)

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

20 Hz - 40 kHz .5% THD

less than .02%

4-8 ohms, 70V

2 ohms

20 Hz - 20 kHz +/- 0.25 dB

0.5 dB @ 8 ohms

1.5 dB @ 70V

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

95-130V AC,  60Hz

20A***

15A

12A

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

15 to 105 degrees F

Forced Air Variable Speed Fan

17" X 3-1/2" x 16" (19" wide with Rack Ears)

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

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