The Luxman L-400 is an integrated amplifier that was produced in the late 1970s. It features a solid-state design with a dual-mono configuration, which helps to ensure better channel separation and reduced distortion. The amplifier is equipped with a power output of approximately 80 watts per channel, making it suitable for driving a variety of speaker types. The L-400 also includes a phono stage for both moving magnet and moving coil cartridges, as well as tone controls for adjusting bass, midrange, and treble frequencies. Its build quality is high, showcasing craftsmanship and attention to detail typical of Luxman's offerings during that era.