The Sansui S-X 500 is a stereo receiver that was introduced during the 1970s. It is characterized by its solid build quality, which features a metal chassis and large, rugged knobs. The design typically includes a brushed aluminum front panel and a distinctive blue power meter. The receiver offers FM/AM radio tuning along with multiple input options for connecting various audio sources. It supports a wide range of speaker configurations and is equipped with the necessary outputs for connecting external amplifiers or additional speakers. The output power is approximately 50 watts per channel at 8 ohms, making it suitable for driving medium to large speakers. The S-X 500 offers tone control capabilities, including adjustments for bass and treble, allowing users to customize their listening experience to their preference. Additionally, it features a phono input for turntables, making it a versatile choice for vinyl enthusiasts. The build quality of the Sansui S-X 500, combined with its performance and range of features, has made it a desirable unit for audiophiles and vintage audio collectors alike.