Musical Instrument Amplifier Repair Service Tube, Solid-State, and Hybrid Guitar and Bass Amplifier repair. Point-To-Point and Printed Circuit Board repair. P.A. and Reinforcement Systems - Rack - Component - Stand-Alone. Custom Tube Amplifier Design & Construction. Custom Cabinet Design & Construction. Ship me your equipment, and I'll send it back fixed, fast! Save a bundle on shipping costs and drop-off/pick-up your Equipment for service.