SB420 Amplifier with fully rebuilt output stage
+ matching tuner - all fully working , serviced.,  The power, precision and space these  produce can only be know by those who have heard them. They are astonishly good. 
 
Specifications
Power output: 42 watts per channel into 8Ω (stereo)
Frequency response: 10Hz to 80kHz
Total harmonic distortion: 0.3%
Input sensitivity: 2.5mV (MM), 150mV (line)
Signal to noise ratio: 70dB (MM), 90dB (line)
Output: 150mV (line), 30mV (DIN), 1V (Pre out)
Speaker load impedance: 4Ω to 16Ω
Dimensions: 450 x 148 x 375mm
Weight: 11.5kg
 
Tuner scale range 88Mhz to 108Mhz