The PRB1 is a four string solid body electric bass model introduced by Ibanez in late 2007. It is a signature model for American bassist Paul Romanko who is known primarily for his work with American heavy metal band Shadows Fall. It was produced in South Korea.
The PRB1 features an SRX series double-cutaway light ash body with pearloid binding bolted to a maple and walnut neck with a 24 fret rosewood fingerboard with special circled star inlay at the twelfth frets. Components include a pair of Ibanez PFR humbucking pickups, individually mounted Mono-rail IV bridges, a plastic nut and Gotoh tuners.
The PRB1 was discontinued after 2008 and replaced with the similar PRB2, which was made in Indonesia.