The Powerocker DX tremolo is a guitar bridge developed and manufactured for Ibanez. It is a version of the Powerocker bridge with fine tuners. It debuted in 1987 and was renamed the Powerocker II for 1988.
The Powerocker DX is a single-locking synchronized tremolo. It differs from the Powerocker on which it is based in that it has a set of six adjustable fine tuners, with one on each saddle. This allows it to be used in conjunction with a string locking mechanism at the headstock. This design increases tuning stability under heavy tremolo use.