The Sanyo RD-224 is a cassette tape deck that was part of the Sanyo System 234, produced from 1984 to 1985. Designed to serve as a reliable and functional component for audio enthusiasts, the RD-224 is notable for its functionality and compatibility within the Sanyo system. As a cassette tape deck, it provides the capabilities to record and playback audio with decent fidelity for its time. The device fits well in a larger system, integrating seamlessly with other components to form a complete audio setup. The exact specifications such as frequency response, signal-to-noise ratio, and total harmonic distortion are not widely documented, but typically, devices from this era are designed to meet the standards of casual and semi-professional audio playback and recording. It is often compared to models like the Sanyo D-30, Sanyo D-50, and other tape decks in the same series, emphasizing its role within Sanyo's product lineup during the mid-1980s.