The Luxman K-331 W is an auto-reverse double cassette tape deck that was produced between 1992 and 1993 in Japan. It features a champagne-colored front and an anthracite housing cover, with an option for a black model. The unit is designed with a System Bus for remote control and consumes 18 watts of power. Its dimensions are 438 mm wide, 125 mm high, and 350 mm deep, and it weighs 6.2 kg. The K-331 W operates on a 4 track, 2 channel system and is equipped with four audio heads: two Hexalam recording/playback heads and two ferrite erase heads. It has two motors and supports a tape speed of 4.75 cm/s. Key performance specifications include a synchronization fluctuation of 0.08% (WRMS), and a frequency response that varies by tape type: 20 Hz to 19 kHz for metal bands, 20 Hz to 18 kHz for CrO² bands, and 20 Hz to 17 kHz for LH bands. The noise margin is notably high, with values exceeding 71 dB (A-weighted) for Metal-band Dolby-C and 65 dB (A-weighted) for Metal-band Dolby-B. The device supports both Dolby B and C noise reduction systems and includes features such as automatic audio head demagnetization and pre-magnetization fine adjustment. The K-331 W integrates several other Luxman components through its System Bus, making it a versatile addition to home audio setups.
