The RBM400 is a Reb Beach series solid body electric guitar model introduced by Ibanez in 1994. It is a signature model of American guitarist Reb Beach, who is best known for his work in the melodic rock band Winger. The RBM400 was made in Japan by FujiGen. It replaced the RBM2.
The RBM body style is the second unique body shape used by Beach after the modified Explorer styled WRB3 model. The body, which was designed by Reb Beach himself, features a deep cutaway at the back of the body all the way to the tremolo. It is also known as Voyager style.
The RBM400 features a mahogany body bolted to a Bolivian rosewood neck with a 22-fret Bolivian rosewood fingerboard with clay dot position markers. Components include Ibanez pickups with a humbucker at the bridge and single coil-sized humbuckers in the middle and neck positions and a Lo Pro Edge double locking tremolo bridge.
The RBM100 is a similar model with a maple neck and rosewood fretboard.
The RBM400 was discontinued after 1995 along with the rest of the Reb Beach signature models.