Quad 520 
 
Specifications
Power output: 120 watts per channel into 8Ω (stereo)
Frequency response: 20Hz to 20kHz
Total harmonic distortion: 0.1%
Input sensitivity: 0.5V
Signal to noise ratio: 115dB
Dimensions: 482.6 x 88 x 310mm
Weight: 12.5kg