The RX370B features a resoncast body with a one-piece quartersawn maple neck attached with a tilt joint with a metal plate. The neck has a 24-fret rosewood fingerboard with dot position markers. It has dual Ibanez pickup ring-mounted humbucking pickups flanking an Ibanez single-coil. The bridge is a Floyd Rose-style TRS-101 double locking tremolo with a locking nut. The RX370B was produced for just a single year and sold only in Japan.