|Image and description of Double SAT tremolo from 2003 Ibanez EU catalog
The SAT30SX is a synchronized tremolo bridge produced for Ibanez and introduced in 2002.
The SAT30SX is a version of the SAT30S with the addition of L.R. Baggs active piezo pickup saddles to allow acoustic-like sounds.. It is also referred to as the Double SAT tremolo.
Other piezo equipped tremolos are the Double Edge,Double Lo Pro Edge and the Double Edge Pro double locking tremolos.