I am selling a Cyrus set consisting of the following: Cyrus III Integrated Amplifier Power output: 50 watts per channel into 8Ω (stereo) Frequency response: 2Hz to 80kHz Total harmonic distortion: 0.01% Damping factor: 100 Input sensitivity: 2.75mV (MM), 200mV (line) Signal to noise ratio: 80dB (MM), 98dB (line) Output: 200mV (line), 0.38V (Pre out) Dimensions: 73 x 215 x 360mm Weight: 4.6kg Finish: black Cyrus PSXR External Power Supply Cyrus Power Amplifier Final Amplifier Logitech Compatible Remote I have used this system successfully on BI-AMP speakers. The sound is very good. The integrated amplifier with the dedicated PSXR power supply offers a HIGH-END sound for little money, clean, refined, dynamic and authoritative. The final amplifier has the same power and specifications as the integrated and makes a very good matching in this regard.