Purchased from the US for a battery power conversion that never happened Tripath power in from the 2050 chip to approx 30 watts. or an excellent addition to your existing amp for more channels Useful to an audio enthusiast, electronics tech or someone looking to power 3 back channels in their home theater for a low cost. Output Power / Total 90 Watt - 30 watt per channel x 3 channels Output Impedance / Channel 6 Ohm Frequency Response at 1 kHz Total Harmonic Distortion (THD) 0.5 % DIMENSIONS & WEIGHT Width 8.5 in Depth 13.3 in Height 4.3 in Weight 5.51 lbs