The Sony TC-RX 70 is a cassette deck that was manufactured by Sony in the early 1980s. It is a stereo cassette recorder/player that offers various features such as Dolby noise reduction, adjustable bias control, auto tape selector, and autoreverse playback. The TC-RX 70 also has a frequency response of 30Hz to 17kHz, a signal-to-noise ratio of greater than 52dB, and can handle both Type I and Type II cassette tapes.