Quality Service Reasonable Rates! -Need to know the TRUE power output of your amp? How about its distortion characteristics or slew-rate? Would you like to know where the half-power point is located on your speaker cross-overs? Let us check out your equipment for a detailed performance analysis!Also, we perform warranty service on several brands of musical instrument amplifiers and sound reinforcement products. A detailed explanation of warranty procedures and requirements are HERE. We welcome you to call us if you have any questions regarding warranty service on your product.Although modification of any machine is not recommended ( please read "A few words regarding modifications" in the FAQ section ), you might want an extra input or speaker jack, memory expansion, effects loop, tube amp gain boost, re-pedaling or some other wacky innovation that gives your equipment a personalized touch! Give us a call and we'll talk about it!We are a company located in the city of Anaheim in sunny southern California and have been doing business at the same location for over 23 years. We maintain, service and repair electronic musical instrument equipment from vacuum tube amplifiers to studio recording pre-amps, effects, mixing consoles and analog or digital multi-track recorders.What products are we authorized to repair? -We are factory authorized to service instruments manufactured by several companies. Warranty service is also available through us for the following manufacturers:What other services do we provide? -Custom Rack Mounting * Pedal Board Wiring and "Re-pedaling" * Analog and Digital Mods * Amp Mods * Mixing Console Mods * Studio Consultation * and Much More!