The AR400 is an Artist series solid body electric guitar model introduced by Ibanez in 1979. It was made in Japan by FujiGen.
The AR400 features an arched maple top on a double-cutaway mahogany body mated to a set-in three-piece maple neck with a 22-fret ebony fingerboard with binding and pearloid and abalone split block position markers. Components include dual Ibanez Super 80 humbucking pickups mounted in creme pickup rings, a Gibraltar Tune-O-Matic style bridge and Quik Change tailpiece with an ornamental scalloped plate, rubberized Sure Grip control knobs and VelveTune machine heads.
Controls consist of a master volume and (passive) tone and a Tri-sound switch for each pickup along with an Active Tone Circuit consisting of a 2-band ±15 dB active EQ (midrange and treble). An onboard 9V battery powers the active circuit.
The AR500 is a similar model with a 3-band EQ tone system with a gain adjustment. The AR300 is a related model without the Active Tone Circuit.