The AR400 is an Artist series solid body electric guitar model introduced by Ibanez in 1979. It was made in Japan.
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.