The Pioneer S-777 D is a complete audio system manufactured by Pioneer between 1990 and 1991. This model incorporates various components to provide an integrated audio experience. The S-777 D system features an integrated amplifier model Pioneer A-Z 460, a tuner (Pioneer F-Z 460 L), and a tape deck (Pioneer CT-Z 460 WR). It also includes an equalizer (Pioneer GR-Z 460) and indicates compatibility with speakers designated as Pioneer S-Z 460. For playback options, the system supports a turntable through the Pioneer PL-Z 560, a dual CD player option (Pioneer PD-Z 560 T), and a CD changer option (Pioneer PD-Z 960 M). The system also supports surround speakers with the option for Pioneer S-X 7 A. A remote control is included for convenience, enhancing the user experience. The original price for this complete system was approximately 2,398 DM, including speakers.