DM-350W+350W is a stereo amplifier module of 2 x 350W /4Ω RMS.

  • 350W + 350W RMS
  • Class-D


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DM-350W+350W is a stereo amplifier module of 2 x 350W /4Ω RMS. This module, used in some active speakers of the brand, is also available as component for other manufacturers. Based on Class-D and Class-AB architecture the DM modules are light compact and very reliable. They use thermal, short-circuit, overload output protection, over voltage protection and DC offset. The temperature can be controlled via a 12V DC output connected to a fan. CH1 and CH2 can be bridged for mono applications. Auto Standby, conform to ERP Directive, and PFC options are also available.
MODEL DM-350W+350W  
General CH1 / CH2 CLASS-D Amplifier
Power Requirements AC~220-240V +/-10%  50/60Hz / 5AH   -   AC~110-120V +/-10% 50/60Hz / 10AH
Auxiliary Supply DC +/-15V @ 0.5A / DC +5V @ 0.3A   -   DC +12V @ 0.3A / DC +5V @ 0.3A
Weight 1.1 kg (2.43 lbs)
Dimension (W x D x H) 216 x 126 x 70 mm (8.5” x 4.96” x 2.76”)
Audio Section Class-D Amplifier
Slew  rate (8Ω) 1.5V/ms
S/N Ratio >95dB/A
Distortion <0.05% (THD. DIM. SMPTE)
Inputs Unbalanced to ground
Impedance 10kΩ
Gain 26-32dB
Output Unbalanced to ground
Bandwidth 15Hz~20kHz
Damping factor (8Ω) >400 (100Hz) / >180 (1kHz)
Power Specifications (230V rms mains voltage) 4Ω Load 330W + 330W (RMS)
400W + 400W (EIAJ)
8Ω Load 180W + 180W (RMS)
200W + 200W (EIAJ)
Function Thermal protection (over-temperature power limited, thermal shutdown)
Short-circuit / overload output protection
Temperature  controlled 12V DC fan output
Over voltage protection
DC offset shutdown

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