Amp Doctor in Riverside, California serves musicians throughout the Inland Empire with expert guitar repair, amplifier service, and comprehensive instrument restoration. Proprietor Pat “Manny” Cahill brings over 40 years of hands-on experience working on guitars, basses, violins, banjos, mandolins, and virtually any stringed instrument. As a Gibson Authorized Service Center, the shop maintains factory-certified standards for repairs and restorations.

What sets Amp Doctor apart is their team of experienced performing musicians who understand gear from a player’s perspective. Their guitar tech services include professional setups, fretwork, and adjustments that make instruments play better than ever. Vintage tube amplifiers are a particular specialty, with skilled technicians handling everything from classic restorations to custom builds.

Beyond individual instrument repair, Amp Doctor works with churches, schools, and retail establishments on PA system design, installation, and maintenance. Their luthier expertise extends to custom work, including unique builds featuring premium tonewoods and vintage-spec components. The shop’s inventory changes daily, offering musicians access to quality vintage and contemporary gear alongside their renowned repair services.