Cambridge Audio Azur 540A Stereo Integrated Amplifier !

4 channel bi wire amp http://www.cambridgeaudio.com/summary.php?PID=104&Title=Azur+540A+%28Version+2%29+amplifier Power Output: 60 Watts into 8 Ohms 90 Watts into 4 Ohms Input Impedance: 47k Ohms Loudspeaker Impedance: 4 to 8 Ohms Line: 330mV Phono (using optional phono stage): 1.75mV Total Harmonic Distortion (into 8 Ohms 80% rated power): 0.002% THD (No weighting) @ 1kHz 0.0015% THD (A weighted) @ 1kHz 0.025% THD 20Hz-20kHz @ 10W Frequency Response: 5Hz to 50KHz +/- 1dB Bass: +/- 10dB @ 100Hz Treble: +/- 10dB @ 10kHz Signal to Noise Ratio (No weighting): >85dB Slew rate (into 8 ohms): >30V/uS Max. Power Consumption: 515 watts Dimensions (W x D x H): 430 x 310 x 100mm 16.9 x 12.2 x 3.9" Weight: 7.4 kg 16.3 lbs