The S1540QS is an S series solid body electric guitar model introduced by Ibanez in 2000. It is part of the high end Prestige line.
The S1540QS features a mahogany body with a quilted sapele top mated to a maple and bubinga Wizard Prestige neck with a 22-fret bound rosewood fingerboard with a special inlay at the 12th fret. Components include Ibanez Quantum pickups, a locking nut and a double locking tremolo bridge.
The S1540FM is a similar model with a flamed maple top and gold hardware. The S1540QM is another similar model with a quilted maple top.
In 2001 a new inlay style was introduced. The S1540QS was discontinued after 2002.