Backed by 40 years of passion and experience as an audio designer and a bass player, Phil Jones and his company create ground breaking and innovative music instrument amplification products that are always one step ahead of competition. PJB is all about Performance, Quality and Dependability. We take pride on having the most extensive R&D department in the world of bass amplifier makers so that we can insure quality and reliability to the bass community. Our products are designed to give an exhilarating user experience while providing incredible clarity and tone. American Musical Supply and PJB have the answer to your musical needs!