Technics RS-B48R (1984–1985)
A high-end auto-reverse cassette deck made in Japan, supporting Dolby B, C, and DBX noise reduction with MX heads and full metal tape capability.
Overview
The Technics RS-B48R is a stereo cassette deck produced in 1984–1985, designed for high-fidelity audio recording and playback. It features a 2-head, auto-reverse system and supports Type I, CrO2, and Metal tapes, making it a versatile machine for its era. The unit includes a fluorescent meter for level monitoring and was built with high-quality MX heads, contributing to its strong performance across tape types. It was manufactured in Japan and marketed as a premium cassette deck with advanced noise reduction support.
Specifications
| Type | auto reverse, 2-head, single compact cassette deck |
| Track System | 4-track, 2-channel stereo |
| Tape Speed | 4.8 cm/s |
| Motor | Two motor: 1 x reel, 1 x capstan, 1 x mechanism |
| Heads | MX heads |
| Tape Type | type I, CrO2, Metal |
| Noise Reduction | Dolby B, C, DBX |
| Frequency Response | 20Hz to 17kHz (Metal tape) |
| Output Sensitivity Line Out | 400 mV |
| Output Impedance Line Out | 1.5 kΩ |
| Dimensions (inches) | 16.93 x 3.86 x 10.83 (w x h x d) |
Design
The RS-B48R was made in Japan and features high-quality MX heads, contributing to its accurate tape reproduction. It uses a two-motor system for precise tape transport control and includes a fluorescent meter for visual level monitoring during recording and playback.
Market
The Technics RS-B48R has been described as a "rare find for collectors," with examples found unused and still in original packaging. Replacement belts are available for maintenance, and recertification processes involving frequency response test tapes have been documented. Some units are non-functional upon discovery, indicating potential long-term reliability concerns, though tested examples confirm full playback and recording functionality.
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