The DT400 features a flame maple top with cream binding on a mahogany body mated to a set-in 3-ply maple neck with a 22-fret rosewood fingerboard with binding and pearloid dot position markers. Components include a Gibraltar fixed bridge, Quik Change tailpiece, a pair Ibanez humbucking pickups with a covered Super 58 at the neck and an uncovered V2 with white bobbins at the bridge, Sure Grip knobs, and Smooth Tuner II machine heads. The output jack is mounted on the side of the guitar.
For 1982 the body material was changed from mahogany to basswood and the fretboard inlays were changed to pearloid and abalone split blocks.
The DT300 is a related model without the flame maple top and with a different neck pickup, dot fretboard inlays and chrome hardware.
This DT400 was discontinued after 1982. It was replaced for 1983 by the DT500 which is similar, but has an integrated bridge.