SONY TC-9540
¥ 168,000 (around 1971)
Commentary
A 4-channel tape deck capable of recording and replaying both 2-channel and 4-channel.
The basic structure is the same as TC-9520, but TC-9540 allows 4-channel recording.
The mechanism has been developed based on Sony's TC-707 series professional sound recorders, and is a highly accurate and stable mechanism.
A system control mechanism allows you to press any button at any time, so you can press the play button while fast forwarding or rewinding.
It is designed to suppress the click noise is common in 3-motor decks.
Equipped with an automatic head-out (APS) mechanism that can be used for 4-channel / 2-channel playback.
Equipped with an automatic inversion and auto-repeat (ARV) mechanism that can be used for two channel playback.
Equipped with a tape selector that supports SLH tapes.
Mic and Aux can be mixed.
The playback output of all four channels can be varied.
Model Rating
| Type | Tape deck |
| Tape speed | 19cm/s, 9.5cm/s |
| Wow flutter | 0.04%WRMS(19cm/s) |
| Recording bias | Approximately 120 kHz |
| Frequency characteristic (19cm/s) |
When using SLH tape : 20 Hz ~ 30kHz/30Hz ~ 22 kHz ± 3 dB When using a general tape : 20 Hz ~ 25kHz/30Hz ~ 18 kHz ± 3 dB |
| Overall strain rate | 1.2% |
| Overall S/N ratio | 57 dB (when using SLH tape) 54 dB (when general tape is used) |
| External dimensions | Width 442x Height 508x Depth 243 mm |
| Weight | 22kg |