The Sansui AU-D 907 is a solid-state integrated amplifier that was produced in the late 1970s and is part of Sansui's higher-end series. It features a dual power supply and is capable of delivering high power output with low distortion. The amplifier uses advanced circuitry for signal processing and is designed to provide a clean and dynamic audio performance across various frequency ranges. It has multiple inputs and outputs, allowing for versatile connectivity with other audio components. The design includes a sophisticated power meter to monitor output levels and quality. Its build quality is notably robust, often featuring a heavy chassis and classic Sansui aesthetics.