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The M205 Mono Amplifier
(per mono amplifier)

Static Power Consumption90 Watts On
Standby power less than 2 watts
Operating Voltage Range120/240V (Auto switching)
100V (Fixed)
Fuse1/4"x1-1/4" 10A 250V Slow Blow
Input1x XLR Input
Output2x Binding post set per channel
ControlsInput Impedance Switch
On/Off Button
Standby Button
Display Dimmer
12V Mode Switch
2x MSB 12V trigger port
Continuous Power Output (8Ω) < 1% distortion220 W
Continuous Power Output (4Ω) < 1% distortion400 W
Dual Bi-Amp Continuous Power Output (8Ω) < 1% distortion200W
Dual Bi-Amp Continuous Power Output (4Ω) < 1% distortion380W
Frequency Response (20 to 20kHz)±0.03dB
Signal to Noise (20 to 22kHz)>130dB (>133dBA)
Equivalent Input Noise (22kHz BW)0.65μV
Gain (150Ω source impedance)23.8dB
Input Impedance (User Selectable)75Ω / 300Ω / 1.2kΩ
Output Impedance (20 to 20kHz)0.01Ω


Input/Gain Stage- Class-A
- Double balanced
- Impedance matched
- Fully discrete
- Independent power
Output Stage- Class-AB
- Balanced
- Medium bias
- Current gain only

Chassis Dimensions (Per Mono Block)

Width:16 in (404 mm)
Depth:19 in (483 mm)
Height:6.5 in (165 mm) Without Feet
7 in (178 mm) With Feet
Weight:90 lbs (41 kg)
Product Feet:M6X1 Thread
3 or 4 Foot Configuration

Shipping Dimensions (Per Mono Block)

Width:24 in (610 mm)
Depth:28.25 in (718 mm)
Height:16.5 in (419 mm)
Weight:137 lbs (62 kg)

Included Accessories

User Manual
IEC Power Cord

The MSB M205 Mono Amplifier (Pair)

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