The Sansui AU-9500 is an integrated amplifier produced during the 1970s, notable for its robust build quality and attractive design. It features a Class AB circuit topology, ensuring efficient power output while maintaining sound integrity. The AU-9500 can deliver up to 85 watts per channel into an 8-ohm load, catering to a variety of speaker configurations. It includes a total harmonic distortion (THD) rating of less than 0.1%, which contributes to its clean and clear audio reproduction. The amplifier offers a range of inputs, including phono, auxiliary, and tape, along with a built-in equalizer, allowing for tailored sound customization. Its front panel is adorned with analog VU meters, providing a visual representation of audio output levels. The AU-9500 incorporates a power protection circuit to safeguard against potential damage from speaker miscalculations. With its combination of aesthetic appeal and solid performance, the Sansui AU-9500 remains a sought-after choice among audio enthusiasts looking for vintage audio equipment.