The 2640 is a double neck Artist series solid body electric guitar model introduced by Ibanez for 1978. It was also known as the Artist Twin. It was made in Japan by FujiGen.
The 2640 has both a six string and twelve string neck. It features a carved maple top with German carved edges and cream binding on a double-cutaway mahogany body mated to a pair of set-in three-piece rock maple necks with 22-fret ebony fingerboards with binding and abalone dot position markers. Components include a pair of Ibanez Super 80 humbucking pickups for each neck mounted in cream pickup rings with individual volume and tone controls and Tri-sound switches for each pickup, a pair of Gibraltar Tune-O-Matic style bridges mounted in sustain blocks recessed into the guitar's body, special tailpieces with integrated "cloud" ornaments, rubberized Sure Grip control knobs, VelveTune II machine heads and a single side-mounted output.
The 2670 (a.k.a. "Artwood Twin") and AR2800 are related Artist series double neck guitars.