The Sansui D-90 is a high-quality dual cassette deck that was designed for audio enthusiasts looking to enjoy and record music with excellent fidelity. Its build quality reflects a robust design and sophisticated engineering aimed at delivering reliable performance. The D-90 features a direct drive mechanism for smooth and accurate tape transport, ensuring minimal wow and flutter during playback. It is capable of playing and recording in both normal and high-speed modes, making it versatile for various cassette formats. The unit typically includes features such as auto-reverse, Dolby B and C noise reduction, and a built-in timer for recording. With its comprehensive monitoring options and adjustable playback levels, users can optimize sound quality to their preference. The D-90 often showcases a sleek, classic look with an array of buttons and LED indicators that enhance usability.