When Sansui announced the price of the revolutionary 661 FM/AM stereo receiver, many high-fidelity experts were greatly surprised. The name Sansui has long meant innovation and excellence in sophisticated audio electronics. But it has also meant, usually, that any high-fidelity equipment bearing the Sansui name also carried an expensive price tag.
Thanks to a startling innovation called CBM (Circuit Board Module) developed specifically by Sansui for its finest professional studio equipment, you can forget about price and concentrate on the outstanding Sansui quality and performance of the all-new 661.
This is a budget-priced stereo receiver that delivers expensive tonal quality and performance. Its power amplifier is of a very advanced all-stage direct-coupled OCL design providing RMS continuous power of 27 fully usable watts per channel (total music power 110 watts) with a surprisingly wide power bandwidth of 15 to 40,000Hz with very low overall distortion
It’s MOS FET equipped tuner and highly versatile preamplifier and control sections with two stereo tape record/monitor circuits. stereo AUX inputs and much more would normally mean a far higher price tag .
Tuning range: FM, MW
Power output: 20 watts per channel into 8Ω (stereo)
Frequency response: 15Hz to 30kHz
Total harmonic distortion: 0.5%
Damping factor: 60
Input sensitivity: 2.5mV (MM), 100mV (DIN), 100mV (line)
Signal to noise ratio: 70dB (MM), 80dB (line)
Channel separation: 45dB (MM), 45dB (line)
Output: 100mV (line), 30mV (DIN)
Speaker load impedance: 4Ω to 16Ω
Dimensions: 444 x 135 x 300mm
Weight: 10kg
Year: 1971
Registration