Equipped with Dolby B to reduce tape hiss by up to 10 dB at high frequencies.
The deck includes built-in Dolby-B and Dolby-C Noise Reduction systems. Dolby-B offers standard high-frequency hiss suppression, while the newer Dolby-C circuit cuts noise by up to 20 dB across critical higher frequencies. A switchable Multiplex (MPX) filter is also present to block 19 kHz pilot signals when recording stereo FM radio broadcasts. Manual Tape Selection akai cs-f21
The Akai was the basic workhorse of the pair. It is a competent 2-head deck with similar core specifications—4-track, 2-channel stereo, single-capstan transport, and manual tape type selection for Normal and Chrome tapes. It features a brushed aluminum faceplate and is known for its solid build. Equipped with Dolby B to reduce tape hiss
: Includes a Timer Start switch enabling automated playback or recording when paired with an external hardware timer. Collecting and Maintenance in the Modern Era A switchable Multiplex (MPX) filter is also present
The Akai CS-F21, produced around 1982–1983, is a 2-head stereo cassette deck featuring Dolby B/C noise reduction, full logic transport control, and support for metal tapes. Known for a frequency response of up to 18,000 Hz on metal tape, it features a single DC motor and peak-reading meters, with serviced units often found on platforms like Reverb .
is a single compact cassette deck with a 4-track, 2-channel stereo system. Specification 1 x record/playback, 1 x erase Motor Electronically speed-controlled DC motor Tape Compatibility Type I (Normal), CrO2 (Chrome), and Metal Frequency Response 20Hz to 19kHz (Metal tape) Signal-to-Noise Ratio 75dB (Dolby C) Wow and Flutter Total Harmonic Distortion Key Features
Akai CS-F21 Single Cassette Deck * Fully Serviced * New belts