The Technics RS-M 255 X is a cassette deck that was part of the Technics audio range during the 1980s. It features a dual-capstan drive mechanism that ensures stable tape transport and high-quality sound reproduction. The deck supports both Type I (normal) and Type II (chrome) tapes, making it versatile for different recording needs. A notable feature of the RS-M 255 X is its direct-drive system which minimizes mechanical noise, leading to clearer sound playback. Additionally, it includes a bias adjustment for optimal performance with various tape types, enhancing recording quality. The deck also has a peak level meter to monitor levels during playback and recording, ensuring that audio signals are neither too low nor clipping. Other specifications include a frequency response of 20 Hz to 20 kHz for Type I tapes and improved frequency response for Type II tapes. The signal-to-noise ratio is typically around 70 dB, delivering a clean and dynamic sound. The aesthetic design incorporates a sleek front panel with functional buttons and a sturdy build, typical of Technics products from this era.