The amplifier has been recently fully serviced. It comes from a private collection that has to be reduced for spatial reasons. I have been purchased it from the start for personal use with very strict criteria and are it's been maintained by a qualified technician, with the aim of being at 100% of its factory performance. The photos in the ad are of the actual machine for sale. Please see them carefully as they are part of its description The unit features a toroidal power transformer, dual transistor differential amplifier with constant current power supply and 2 transistor current mirror circuit. SPECS: Power output: 110 watts per channel into 8Ω (stereo) Frequency response: 5Hz to 100kHz Total harmonic distortion: 0.03% Damping factor: 70 Input sensitivity: 1V Signal to noise ratio: 115dB Speaker load impedance: 8Ω (minimum) Dimensions: 460 x 160 x 375mm Weight: 18.3kg Year: 1978 #ExclusiveAudiophile