The WM-B39 was one of the first Walkman models to include the new “mega bass” loudness system. As applied to personal audio, this arrangement attempted to overcome the limitations of small, basic headphones so as to provide a richer, fuller, more satisfying sound. The mega bass arrangement fitted to the WM-B39 included bass and treble controls that operated when the system was engaged. Text copyright © Walkman Central. Unauthorised reproduction prohibited.
As well as offering mega bass, the WM-B39 also included a new type of auto-reverse mechanism that was loosely derived from that used in the WM-60. Although still fairly basic, this mechanism offered considerably better results than that fitted to the WM-B10 and the many models based on it. In addition to auto reverse and mega bass, the WM-B39 also offered Dolby B NR and metal tape compatibility, so it was a well-featured machine. Text copyright © Walkman Central. Unauthorised reproduction prohibited.