Technics RS-B21
¥ 29,800 (around 1983)
Commentary
A stereo cassette deck with thorough basic performance such as stable driving and light operation.
The tape travel system uses a unique mechanism that uses the rotational force of the motor itself to switch between operations. This realizes smooth and stable tape travel and precise head touch.
In addition, the driving system is operated in a soft manner by simply pressing a button, making it possible to operate the system lightheartedly and reliably.
Uses MX head with excellent distortion characteristics and frequency characteristics.
Also, a double-gap ferrite head is used for erasing.
It is equipped with cue and review function which can quickly find the beginning of the song.
Equipped with a rewind autoplay function that automatically rewinds and starts playing when the tape ends.
Equipped with a timer standby function.
Equipped with Dolby BNR.
Model Rating
| Type | Stereo cassette deck |
| Heads | Recording / Playback : MX Erasing : double-gap ferrite |
| Wow flutter | 0.05%(W.R.M.S.) ± 0.1% (W. Peak, EIAJ) |
| Frequency characteristic | Normal (ED) : 20 Hz to 15 kHz, 50 Hz to 13 kHz ± 3 dB (EIAJ) CrO2(EX) : 20 Hz to 16 kHz, 50 Hz to 14 kHz ± 3 dB (EIAJ) Metal (EM) : 20 Hz to 17 kHz, 50 Hz to 15 kHz ± 3 dB (EIAJ) |
| Signal-to-noise ratio | NR off : 57 dB (EX tape, WTD, 1 kHz, 3% third order distortion), 55 dB (EX tape, EIAJ) Dolby NR in : 66 dB (EX Tape, WTD, 1 kHz, 3% third order distortion) |
| Pwer | 100 VAC, 50Hz/60Hz |
| Power consumption | 10W |
| External dimensions | Width 430x Height 108.2x Depth 237.5 mm |
| Weight | 4kg |