Nakamichi MB-10 (circa 1982–1984)

The Nakamichi MB-10 is a budget cassette deck, and the documentation on it conflicts in several places. It was built to extend Nakamichi's range downward into the affordable sector. It came in a new, softer case style, a departure from the angular DX/ZX look that preceded it. The deck sat below the 1981 DX and above the 1984 MR-1 in the model hierarchy.

Production dating is where the record gets fuzzy. Japanese Audio Heritage places the introduction in 1982 with a price of ¥49,800. The Vintage Cassette Decks Museum lists 1983-1984. hifiengine says 1984. No Western-market price has surfaced. The design was described as simple, with record and playback amplifiers on a single printed circuit board and no bias adjustment, which fits its budget role.

The head configuration is the one genuinely contested detail. The Vintage Cassette Decks Museum calls the MB-10 a two-head deck with a DC motor. VintageAudioHub describes it as a three-head deck with a dual-capstan transport. The MB-10 was explicitly a budget model meant to sit below the DX series, so two heads seems more plausible, but the record is not definitive enough to state either with confidence. What is agreed upon: it handles Type I, CrO₂, and metal tapes, offers Dolby B and C, and uses a DC motor. The Vintage Cassette Decks Museum lists frequency response as 40 Hz to 15 kHz on normal tape, while VintageAudioHub lists 30 Hz - 18 kHz for FeCr / Metal tapes. Signal-to-noise is listed at 56 dB with Dolby B and 65 dB with Dolby C, and wow and flutter at 0.08%. The MB-10 measures 420 × 120 × 240 mm and weighs 4.3 kg, with 2× RCA line inputs and outputs.

No owner commentary, common problems, or repair information has been documented. Period advertising said the deck delivered "much more than what meets the eye" Audio (October 1999, p.83).

Type: single-cassette stereo cassette deck, front-loading
Heads: conflicting records — 2-head vs. 3-head (unresolved)
Tape types: Type I, CrO₂, Metal
Noise reduction: Dolby B, C
Frequency response: 40 Hz – 15 kHz (Normal tape) / 30 Hz – 18 kHz (FeCr / Metal tapes) — conflicting records
S/N ratio: 56 dB (Dolby B), 65 dB (Dolby C)
Wow and flutter: 0.08%
Dimensions: 420 × 120 × 240 mm; 4.3 kg
Price: ¥49,800 (Japan, 1982)