The Sansui TU-9900 is a stereo tuner that was introduced in the late 1970s by the Japanese audio manufacturer Sansui. It is recognized for its dual-gate MOSFET front end, which improves sensitivity and selectivity. The TU-9900 provides accurate tuning with a frequency range of FM 87.5 - 108 MHz and AM 520 - 1630 kHz. The tuner features a digital frequency display that allows for precise tuning adjustments. Signal-to-noise ratio is generally reported as high, providing clear audio without interference. It offers outputs for both mono and stereo listening, and it has a built-in multiplex decoder for FM stereo broadcasts. The audio outputs consist of RCA connectors, and the tuner has a dedicated monitoring output. Additionally, the TU-9900 is equipped with a variety of signal indicating features, greatly enhancing the user experience. The design includes smooth turning knobs, backlit display elements, and a solid build quality, making it an appealing addition to home audio setups. The internal components of the TU-9900 are designed to minimize distortion, leading to an enjoyable and rich audio playback experience.
