2/4-Channel Power Amplifier With USB Port

2 channels: 90 watts per channel into 8 ohms 4 channels: 45 watts per channel into 4 ohms Frequency response: 20Hz-20kHz Link to the ethernet through USB or ethernet adapter High efficiency power amplifier for very low heat dissipation Auto on/off feature controlled by audio signals Input sensitivity adjustments for each input 17 inch W x 1 13/16 inch H x 11 7/8 inch D