SANSUI QSD-2
¥ 33,800 (around 1977)
Commentary
QS synthesizer / decoder incorporating SANSUI's original QS Barrio matrix technology.
Equipped with a QS synthesizer that converts 2 channel sources of stereo records, tapes and FM stereo broadcast transmission into 4 channels.
The QS-Synthesizer function was able to choose between two positions, surround and hall, and effective realism.
SQ records are also reproduced by an original phase matrix circuit.
The high separation of 20 to 30 dB between channels is achieved with emphasis on musical characteristics such as accurate positioning.
Model Rating
| Type | QS Synthesizer / Decoder |
| QS Decoder Unit | |
| Separation | 20 dB (adjacent ch) 30 dB (opposite channel) |
| Distortion factor | 0.1% or Less (1 kHz) |
| Frequency characteristic | 20 Hz to 30 kHz |
| <QS Synthesizer Unit> | |
| Separation | Equivalent to QS decoder section |
| Distortion factor | Equivalent to QS decoder section |
| Frequency characteristic | Equivalent to QS decoder section |
| <SQ Position (PHASE MATRIX)> | |
| Separation | 20dB(LF-RF) 12dB(CF-CB) |
| Input sensitivity | 130mV(2ch) |
| Output level | 730mV/730mV (F/B, Rating) 5V/5V (F/B, max.) |
| External dimensions | Width 126x Height 120x Depth 288 mm |
| Weight | 2.5kg |