Technics RS-630US (1976?)
A 2-head stereo cassette deck from Technics featuring Dolby B and C noise reduction, released in 1976.
Overview
The Technics RS-630US is a stereo cassette deck manufactured by Technics and released in 1976? It belongs to Technics' mid-range lineup of cassette decks from the early 1980s? The unit features a 2-head configuration, a DC servo capstan motor, and a soft-touch electronic transport control system. It includes peak level meters with LED indicators, a 3-digit mechanical counter, and a tape selector for Normal, CrO2, and Metal tapes.
Specifications
| Head configuration | 2 (Record/Playback, Erase) |
| Motor system | DC servo (capstan), 2 motors (capstan, reel) |
| Frequency Response | 20Hz–20kHz (±3dB) |
| Wow & Flutter | 0.04% WRMS |
| Signal-to-Noise Ratio | 72dB (Dolby C) |
| Total Harmonic Distortion | 0.8% |
| Inputs | Line (50mV/50kΩ), Mic (0.25mV/10kΩ) |
| Outputs | Line (0.5V/50kΩ), Headphones (8Ω) |
| Dimensions | 430 x 135 x 315mm (W x H x D) |
| Weight | 7.2kg |
Design
The RS-630US is a 2-head, single-capstan cassette deck with Dolby B and C noise reduction. It features a DC servo capstan motor and a soft-touch electronic transport control system. The front panel includes a 3-digit mechanical counter, peak level meters with LED indicators, and a tape selector switch for Normal, CrO2, and Metal tapes.
Market
Units have been listed as non-functioning, requiring belt repair or exhibiting a screeching sound during playback. One non-functioning unit with box was listed for $14.99, while the original retail price was $39.95. Service manuals and replacement parts, including lights, are available through collector channels.
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