The Technics CH-510 (officially the Technics SC-CH510) is a stereo system. It is a modular audio system from the 1990s (released around 1994), comprising modules connected by dedicated cables, a CD player, an amplifier .. System configuration: Amplifier / Tuner: The main unit controlling the power supply and the radio (delivering 2 × 35 W at 6 Ω impedance). CD player (SL-CH510): A unit for playing compact discs, powered directly from the main unit via a system ribbon cable. Cassette deck: A module with cassette playback and a Dolby noise reduction system. Technical specifications: Connection of components: The devices within the system are connected via special flat cables (ribbons) that carry control signals and power, meaning that the individual components cannot function as independent, standalone audio units without the main unit. Dimensions of the main unit: Width 270 mm, height 118.5 mm, depth approx. 339 mm. The set has been checked; the cassette rollers and heads have been cleaned. The player’s laser has been checked and cleaned. The equipment is in working order. I recommend it.