AIWA AD-R50
¥ 59,800 (around 1983)
Commentary
Stereo cassette deck with 0.2 second quick reverse.
It uses a quick reverse method that reverses the magnetic tape when it hits the seam of the tape at the end of the magnetic tape. This realizes high-speed reversal of 0.2 seconds.
A blank skip mechanism allows the deck to automatically fast-forward to the end of the tape and perform a reverse operation when a tape is playing for more than 12 seconds without recording.
It is equipped with an editing mechanism that is useful for rerecording.
With this function, you can play the tape in reverse while the switch is pressed, and when you release the switch at the desired point, the auto-rec mute function activates and automatically creates a 4-second inter-song blank and enters a pause standby state.
It is equipped with a 9-track music sensor that searches for unrecorded sections between songs and automatically starts the specified song.
Furthermore, when the head-out is completed, it enters the playback standby state.
It is equipped with Dolby HX Pro which applies active servo bias theory.
The Dolby HX Pro keeps the total effective bias constant by adjusting the bias to a deep level when there is a large number of mid - and low-frequency components and to a shallow level when there is a large number of high-frequency components. As a result, the saturation phenomenon of tape, which is easily caused by high-level high-frequency signals, is suppressed, enabling clear recording.
Also, Dolby HX Pro works only when recording, so it can be played on any deck.
Equipped with multi-functional electronic counter.
The Dolby B/C system is installed as a noise reduction system.
Equipped with bias fine adjustment mechanism corresponding to normal / chrome tape.
Equipped with timer standby mechanism, and by using a timer sold separately, it is possible to record absence and play alarm clock.
Auto Rec Mute is installed.
It has a Queue & Review function.
Equipped with an auto tape selector that supports 3 types of normal chrome metal tapes.
Model Rating
| Type | Stereo cassette deck |
| Track system | 4-track 2-channel |
| Motor | DC servo motor DC Motor |
| Heads | Recording and playback : DX head Erasing : Hi-Bs double-gap ferrite head |
| Wow flutter | 0.038%(WRMS) |
| Frequency characteristic (-20VU recording / 0 VU recording) |
Normal : 20 Hz ~ 16kHz/20Hz ~ 9 kHz ± 3 dB Chrome : 20 Hz ~ 17kHz/20Hz ~ 12 kHz ± 3 dB Metal : 20 Hz ~ 18kHz/20Hz ~ 15 kHz ± 3 dB |
| SN ratio (WTD, 1 kHz, 3% 3rd harmonic distortion factor) | 73 dB (Dolby Ctype on, metal tape, peak level) |
| External dimensions | Width 420x Height 110x Depth 300 mm |
| Weight | 5.2kg |