The Pioneer PL-400 is a direct-drive turntable that was released in the late 1970s. It features a quartz-locked speed control system for enhanced precision in playback and offers a sleek design with a wooden finish. The PL-400 is equipped with an adjustable tonearm, allowing users to optimize tracking for different cartridges. It includes features such as a stroboscopic light for speed monitoring and a smooth pitch control, which cater to audiophiles and vinyl enthusiasts looking for high-quality sound and control over their playback experience.