AB International 644
Four Channel Power Amplifier
Power output: 270 watts per channel into 8Ω (stereo), 270W (4 channel)
Frequency response: 20Hz to 20kHz
Total harmonic distortion: 0.25%
Gain: 28 dB
Input sensitivity: 1V
Signal to noise ratio: 101dB
Speaker load impedance: 2Ω (minimum)
Dimensions: 17.375 x 5.25 x 13.5 inches
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