The Sansui 400 is a vintage stereo receiver that was introduced in the late 1960s, exemplifying the solid-state technology that was emerging at the time. It is known for its robust construction and warm sound signature, appealing to audio enthusiasts. The receiver features integrated amplification with a power output of approximately 20 watts per channel into 8 ohms, making it suitable for driving a range of speakers. The unit is equipped with a dual-section dial for tuning AM and FM bands, which offers a classic analog experience. It also includes a phono input for connecting turntables and allows for multiple input sources such as tape and auxiliary. The Sansui 400 showcases a sleek design typical of the era, with a metal chassis and a wood veneer finish that adds to its aesthetic appeal. Users appreciate its reliability and the quality of sound reproduction, especially with vinyl records. The unit features a simple but effective tone control section, allowing adjustments to bass and treble frequencies. The receiver is often praised for its ease of use and the distinct aesthetic qualities that make it a desirable piece of audio equipment for collectors.