4-Channel Receiver (1974-77)
The Sansui QRX-7001 incorporates a QS synthesizer circuit to reorganise conventional 2-channel stereo signals and create a 4-channel sound field.
The built in QS regular matrix system 4-channel decodes 4-channel records and tapes encoded with the regular matrix system such as the QS system, and their broadcasts, to reproduce them as a perfect 4-channel sound field.
The built in Phase Matrix circuit, featuring Sansui's own front-back logic, decodes records and tapes encoded with the SQ system to properly reproduce them in 4-channel stereo.
The new Sansui improved CD-4 demodulator makes it possible to reproduce CD-4 4-channel records, with increased inter-channel separation.
Tuning range: FM, MW
Power output: 35W/ch into 8Ω (quadraphonic)
Frequency response: 15Hz to 30kHz
Total harmonic distortion: 0.4%
Damping factor: 10
Input sensitivity: 2.5mV (MM), 100mV (DIN), 100mV (line)
Signal to noise ratio: 70dB (MM), 80dB (line)
Channel separation: 50dB (MM), 50dB (line)
Output: 100mV (line), 30mV (DIN)
Speaker load impedance: 8Ω (minimum)
Dimensions: 540 x 161 x 403mm
instruction/owners manual - Pertrix
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