| Title | Value |
|---|---|
| TUNER SECTION | TUNER SECTION |
| Sensitivity : | 1,9µV (IHF) |
| S/N ratio : | 70dB |
| Capture ratio : | 1,2dB |
| Selectivity : | 75dB (IHF) |
| Image rejection : | 70dB |
| IF rejection : | 100dB |
| Spurious rejection : | 90dB |
| AM suppression : | 54dB |
| THD : | 0,2% (400Hz, mono) |
| 0,5% (400Hz, stereo) | |
| FM separation : | 40dB (400Hz) |
| FM frequency response : | 40Hz...15Khz (+0,5 / -1dB) |
| AM THD : | 0,5% |
| AM S/N ratio : | 50dB |
| PREAMP SECTION | PREAMP SECTION |
| Inputs : | Phono (5mV / 50kOhm) |
| Phono low (2,5mV / 50kOhm) | |
| Microphone (1,5mV / 50kOhm) | |
| Tuner, Aux, Tape, DIN (250mV / 50kOhm) | |
| Outputs : | rec-out (250mV / 10kOhm) |
| DIN (30mV / 82kOhm) | |
| S/N ratio : | 72dB (phono) |
| 65dB (MIC) | |
| 90dB (line) | |
| High filter : | 8Khz (6dB/oct.) |
| Low filter : | 80Hz (6dB/oct.) |
| Bass control : | ± 10dB at 100Hz |
| Treble control : | ± 10dB at 10Khz |
| Loudness switch : | + 10dB at 50Hz / + 4dB at 10Khz (att. -30dB) |
| SQ Section | SQ Section |
| THD : | 0,2% (250mV input ; 2Khz) |
| Frequency response : | 20Hz...20Khz (±3dB) |
| S/N ratio : | 80dB (250mV input, IHF-A) |
| MAIN SECTION | MAIN SECTION |
| RMS power : | 2x 80W (2 channels driven, 20Hz...20Khz, 8 Ohm) |
| 4x 30W (4 channels driven, 20Hz...20Khz, 8 Ohm) | |
| 2x 280W (2 channel, peak, 4 Ohm) | |
| 2x 216W (2 channel, peak, 8 Ohm) | |
| THD : | 0,5% at rated power (2 channel) |
| 0,2% at rated power (4 channel) | |
| IM : | 0,5% at rated power (2 channel) |
| 0,2% at rated power (4 channel) | |
| Bandwidth : | 15Hz...40Khz (IHF) |
| Frequency response : | 10Hz...50Khz (1W output, +0/-2dB) |
| S/N ratio : | ?? |
| Damping factor : | 25 (8 Ohm) |
| General | GENERAL |
| Dimensions : | 52 x 18,9 x 37cm |
| Weight : | 18,3kg. |
| List price : | ?? |
| Optional accessory : | RU-40 4CH wired remote-control |
| FEATURES | |
| Full-logic decoding of SQ sources | |
| Decoding of other 4-Channel matrix systems | |
| Enhancement of existing stereo programs | |
| Phase-Locked Loop IC for FM decoding | |
| MOS-FET FM front end | |
| Solid State IF filters | |
| IC IF stage | |
| Completely shielded FM front end | |
| Pinpoint tune signal strength/multipath meter | |
| DC power amp system | |
| Provisions for 2 phono sources | |
| Provisions for 3 tape recorders (2x 2CH and 1x 4CH) | |
| Outputs for 2 sets of 4CH speakers | |
| 4 VU meters and meter sensitivity switch | |
| Individual level controls for each channel | |
| Master level control | |
| Separate Bass & Treble controls for front & rear channels | |
| Microphone mixing control | |
| Loudness compensation | |
| Low & High filters | |
| FM interstation muting | |
| Headphone jacks for 2 and 4CH use | |
| Wooden cabinet included |
Sony SQR-8750
1974
1976
Sony's biggest SQ-compatible receiver, the topper that, like all other QUAD units (toppers or not) didn't make it in the end.
Sony's smaller Quad units sold better. The public was suspicious, and rightly so : hell, why all that fiddling ?
SQ, QS compatibility, R-Matrix, Discrete, 2 more speakers to tinker with, cables all over the place and what happens to Frank Sinatra when he's spread over the four corners of my living-room ?
The contemporary images showing how multi-channel was to be enjoyed invariably displayed someone, alone, surrounded at a close range by four loudspeakers. The key word is alone - not a 1970s concept.
The public completely dropped the multichannel drudgery until the mid 1980s.
However, if Triphony never gained the popularity of Stereophony, Multichannel-phoney nowadays seems resolutely en route for a major take-over.
page online since : november 2004
page updated : june 2010
page type : LGT / KNB
page weight : 616.62 Kb / 382.05 Kb
page updated : june 2010
page type : LGT / KNB
page weight : 616.62 Kb / 382.05 Kb
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