Diatone monster
Its feels heavy...it looks tough..& it sound clean & punchy
DA-A10 main amplifier works on its own, DA-M10 is power meter works combine  with it
Its rare to find both units together.both units are in Excellent condition.
100W+100W RMS is easy task for diatone monster.
This is 100V only
 
Basic Specifications
Power output: 100 watts per channel into 8Ω (stereo)
Frequency response: 20Hz to 20kHz
Total harmonic distortion: 0.005%
Damping factor: 100
Input sensitivity: 1V
Signal to noise ratio: 107dB
Dimensions: 425 x 170 x 285mm
Weight: 16kg
 
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Click here for user manual