The Sansui AU-519 is an integrated amplifier that was produced in the late 1970s and early 1980s. It features a solid state design and is noted for its powerful and clean sound output. The amplifier delivers a robust power rating, typically around 65 watts per channel into 8 ohms, and offers a wide frequency response, along with low distortion levels. It also includes multiple inputs and outputs for different audio sources and speakers, and possesses a phono stage for connecting a turntable, making it suitable for vinyl playback.