This is a Sansui QR-500 in excellent condition. It looks and sounds outstanding. There are some aging spots on the top of the wood casing.

• 4 channels for quadraphonic sound. 

• AM/FM tuner. 

• Right and left volume sliders. 

Specs:

Tuning range: FM, MW

Power output: 8W/ch into 4Ω (quadraphonic)

Frequency response: 30Hz to 30kHz

Total harmonic distortion: 1%

Damping factor: 50

Input sensitivity: 3mV (MM), 180mV (DIN), 180mV (line)

Signal to noise ratio: 60dB (MM), 70dB (line)

Channel separation: 50dB (line)

Output: 180mV (line), 30mV (DIN)

Speaker load impedance: 4Ω to 16Ω

Semiconductors: 1 x FET, 3 x IC, 50 x transistors, 23 x diodes

Dimensions: 17.5” x 5” x 12”

Weight: 17 pounds

Made in Japan in 1973, this is a rare piece of musical history in fantastic shape!