Technics RS-B85
¥ 89,800 (around 1986)
Commentary
3-head cassette deck with built-in phase correction circuit.
In the amplifier section of the deck, the phase frequency characteristics change due to the effect of capacitance and inductance, and the phase shift becomes conspicuous especially in the high frequency range. In order to overcome this shift, the phase correction circuit is adopted.
By keeping the group delay characteristic of the music signal constant, faithful recording and reproduction of the input waveform is realized.
Linear feedback circuit is used to reduce distortion in the low frequency range.
The head part is equipped with an AX combination head adopting amorphous alloy.
Equipped with dbx, Dolby B and CNR.
Equipped with an auto monitor.
Equipped with a music selector.
Model Rating
| Type | Stereo cassette deck |
| Heads | Recording / Playback : AX Amorphous Erasing : double-gap sendust |
| Motor | One capstan motor (electronically controlled DC) One reel motor (electronically controlled DC) |
| Wow flutter | 0.04% (W. R. M.S.) ± 0.08% (W. Peak, EIAJ) |
| Frequency characteristic | Normal (ED) : 20 Hz to 20 kHz, 30 Hz to 18 kHz ± 3 dB (EIAJ) CrO2(EX) : 20 Hz to 21 kHz, 30 Hz to 19 kHz ± 3 dB (EIAJ) Metal (EM) : 20 Hz to 22 kHz, 30 Hz to 20 kHz ± 3 dB (EIAJ) |
| Dynamic range | 110 dB (dbx in, 1 kHz, EX Tape) |
| Signal-to-noise ratio | NR off : 60 dB (EX tape, WTD, 1 kHz, 3% third order distortion), 55 dB (EX tape, EIAJ) Dolby B NR IN : 67 dB (EX Tape, WTD, 1 kHz, 3% third order distortion) Dolby C NR IN : 73 dB (EX Tape, WTD, 1 kHz, 3% third order distortion) Dbx IN : 92 dB (EX Tape, WTD, 1 kHz, 3% third order distortion) |
| Pwer | 100 VAC, 50Hz/60Hz |
| Power consumption | 18W |
| External dimensions | Width 430x Height 98x Depth 279 mm |
| Weight | 5.2kg |