WM-EX677

The WM-EX677 is a higher-end Japanese-market EX-series playback Walkman that sat just below the EX9 and offers a more traditional late-period premium cassette experience. Its slim body combined metal and plastic construction with an external battery compartment, while auto-reverse, Dolby B noise reduction, Mega Bass, AVLS, anti-rolling stability, hold lock, and logic-controlled transport all helped keep it aligned with Sony's more mature commuter-era players. The overall package was clearly built to feel refined without becoming experimental.

What makes the EX677 interesting is that it shows Sony still maintaining a serious domestic playback tier beneath the headline models. Not every late premium Walkman needed a mirror finish, metadata gimmick, or anniversary mechanism. The EX677 is a clean, very Japanese version of what a mature cassette player had become by the end.