Specs: Amplifier, Speakers output, DC power input, Audio line-in, Audio line-out, Remote Bass control, 220 Watt - 4 Ohm - THD 1.0 % - 14.4V DC - 2 channel(s), 140 Watt - 8 Ohm - THD 1.0 % - 14.4V DC - 2 channel(s), 110 Watt - 2 Ohm - THD 1.0 % - 14.4V DC - 4 channel(s), 70 Watt - 4 Ohm - THD 1.0 % - 14.4V DC - 4 channel(s), 150 Watt - 4 Ohm - THD 0.08 % - 12.5V DC - 2 channel(s), 90 Watt - 8 Ohm - THD 0.08 % - 12.5V DC - 2 channel(s), 75 Watt - 2 Ohm - THD 0.08 % - 12.5V DC - 4 channel(s), 45 Watt - 4 Ohm - THD 0.08 % - 12.5V DC - 4 channel(s)