The SA320X is an SA series solid body electric guitar model introduced by Ibanez in 2004. It was produced in South Korea.
The most notable feature of the SA420X is the SAT30SX (a.k.a. Double SAT) non-locking synchronized tremolo bridge with integrated piezo pickups which can offer an acoustic sound. It has a sculpted mahogany bolted to a maple neck with a 22-fret rosewood fingerboard with white dot position markers. Other components include dual Ibanez Axis humbucking pickups.
Controls consist of a volume, tone and 5-way selector for the magnetic pickups, a separate volume for the piezo pickups and a 3-way toggle to select the output: piezo, mixed, or magnetic. The piezo preamp requires a 9V battery. Two output jacks allow you to separate the piezo from the magnetic/ mixed output.
The SA420X is a similar model which was made in Japan and has slightly different components.