Akai GX-4000D - Manual - Owners and Service Manuals The Akai GX-4000D features include a 4-track stereo and monaural recording/playback system, Twin VU meters for indicating recording and playback levels, Recording indicator lamp, Recording safety button, Monitor selector switch, Sound on sound recording procedure, Microphone jacks and Microphone4/5(5) AKAI GX4000D SERVICE MANUAL Pdf Download. View and Download Akai GX4000D service manual online. Stereo. GX4000D Tape Deck pdf manual download. Also for: Gx4000db.