The Sansui AU-X 111 Mos Vintage is a master control integrated amplifier released in 1985. It emphasizes high-performance audio engineering through rigorous component selection and testing. The design incorporates advanced circuit technology derived from preceding models such as the C-2301 and B-2301L. Notably, the amplifier employs MOS FETs as power elements, featuring four parallel push-pull elements for each channel, resulting in a total of 16 elements that enhance low-impedance drive capabilities. The unit is designed to minimize noise and interference, boasting a signal-to-noise ratio over 115 dB and effective cancellation of hum and noise components. Its balanced power supply configuration contributes to its resilience against electrical noise from appliances. Additionally, it includes a dedicated video input terminal which is optimally isolated from audio circuitry to prevent any degradation in sound quality. The model incorporates specialized features like a Power Direct function, independent left and right volume controls, and a robust construction with aesthetically pleasing design elements. With a powerful output of 150W per channel at 6Ω and a low total harmonic distortion rate of 0.008%, the AU-X 111 demonstrates both musical fidelity and technical prowess. The unit supports various input types, ensuring compatibility with a broad range of audio sources.
