Technics RS-B57R
¥ 59,800 (around 1987)
Commentary
Reverse deck with thrust hold rotary head.
The head part uses a thrust hold rotary head.
The rotary head is supported by a 4-point support system in which four high-hardness bearings are arranged on the head base and ring part on the disk, and smooth head rotation is achieved.
An electronically controlled DC motor with high rotational accuracy for the capstan and a 2 + 1 motor system with separate motors for reel and mechanism drive. Combined with the thrust hold rotary head, this system enables highly accurate reverse reproduction in both forward and reverse directions.
Equipped with 3 nr of dbx system and Dolby B / C as noise reduction system.
Equipped with a wide range 3-color FL display of -40dB + 18 dB (when dbx operates).
It is equipped with functions such as music selector, auto rec mute and auto tape selector.
The left and right independent microphone input terminals are used.
It is also equipped with an automatic input switching function between microphone and line.
Model Rating
| Type | Stereo cassette deck |
| Heads | Recording and Playback : Permalloy Erasing : double-gap ferrite |
| Wow flutter | 0.05%(W.R.M.S.) ± 0.1% (W. Peak, EIAJ) |
| Frequency characteristic | Normal (ED) : 20 Hz to 16 kHz, 50 Hz to 14 kHz ± 3 dB (EIAJ) CrO2(EX) : 20 Hz to 17 kHz, 50 Hz to 15 kHz ± 3 dB (EIAJ) Metal (EM) : 20 Hz to 17 kHz, 50 Hz to 16 kHz ± 3 dB (EIAJ) |
| Dynamic range | 110 dB (dbx in, 1 kHz, EX Tape) |
| Signal-to-noise ratio (EX Tape) |
NR off : 57 dB (EX Tape, WTD, 1 kHz, 3% third order distortion) 54 dB (EX tape, EIAJ) Dolby B NR in : 66 dB (EX Tape, WTD, 1 kHz, 3% third order distortion) Dolby C NR in : 72 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 | 14W |
| External dimensions | Width 430x Height 98x Depth 275 mm |
| Weight | 4.9kg |