Precision Vintage Cassette – Technics RS-641 Stereo Cassette Deck (1977–1979) The Technics RS-641 is a late-1970s front-loading stereo cassette deck that combines classic Japanese engineering with studio-grade control. Notable for its FL (fluorescent) bar-graph level meters, fine bias control, and multi-tape bias/EQ selectors, this deck delivers exceptional recording precision and playback warmth for its era. Features & Specifications: Model: Technics RS-641 (Stereo Cassette Deck) Era: 1977–1979 Transport: Front-loading, full-logic mechanical control Heads: 2-head configuration (record/playback + erase) Motor: FG-servo DC motor Supported Tape Types: Normal (Type I), FeCr, CrO₂ (Type II) Noise Reduction: Dolby B system Frequency Response: 25 Hz – 16 kHz (CrO₂ tape) Signal-to-Noise Ratio: 67 dB (with Dolby B) Wow & Flutter: 0.05 % WRMS Tape Speed: 4.8 cm/s Input Sensitivity: Line 60 mV, Mic 0.25 mV Output Level: 0.42 V (line) Front-Panel Features: FL meters, fine bias adjustment, 3-position bias/EQ selector, memory auto-play, mic inputs, headphone output Power Requirements: AC 110/125/220/240 V, 50/60 Hz (voltage-selectable) Condition: Used in vintage condition with minor cosmetic wear consistent with age. Fully tested: playback, recording, Dolby function, and meters all operate correctly. Original knobs, switches, and illumination are present and functioning. Collectable & Audiophile Value: A classic example of late-’70s Technics craftsmanship, the RS-641 combines robust construction with precise manual control. Its fine bias tuning and FL meter display make it both a functional studio tool and a piece of hi-fi history. For collectors or analogue enthusiasts, it remains one of Technics’ most balanced and enduring cassette decks. Additional Information: Tested, demonstrated, and proudly presented by SpaceTime Engineering — watch it in action on our YouTube channel. https://www.youtube.com/@spacetimeengineering Shipping: Professionally packaged to protect the transport, faceplate, and controls. Worldwide tracked and insured shipping according to Catawiki guidelines. PS: This cassette deck is fully functional and performing excellently. However, due to its vintage age, we always recommend a routine service — including the replacement of drive belts and the capstan roller — by a qualified audio technician to ensure long-term reliability and optimal performance.