The Sony TC-K 88 B is a cassette deck that was introduced by Sony in the late 1970s. It is part of Sony's ES (Elevated Standard) range, signifying its high-end audio equipment designed for audiophiles and enthusiasts seeking superior sound quality. The deck is distinguished by its 3-head design, Dolby B noise reduction system, and dual capstan drive, which together ensure optimal tape handling, reduced tape hiss, and excellent sound reproduction. It also features electronic tape counter, bias and equalization adjustments for different tape types, and proprietary technologies for stable tape transport and reduced distortion.