Welcome To Rivera Research & Development. We build the finest all-tube guitar amplifiers, including the KnuckleHead 55 and 100, the M/S Pro Series, and the R Series combos. For info on the amps, the artists, new products, and dealer locations, select any of the knobs or switches.
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We're glad you checked in with us, and we want you to feel at home here. We make the world's best guitar amplifiers--all by hand, all with vacuum tubes. Each Rivera product is guitarist-driven from its design to its construction, and each feature has been tweaked and tested until it meets guitarists' needs for easy-to-get killer tone. Every component is specially selected to deliver great sound, great reliability, and therefore great value. We're proud of our amps, speaker cabinets, and accessories, and we never cut corners or rely on production shortcuts because we know how important your tone is.

Check us out. Take a look at what's new at Rivera, browse our catalog, and find out where you can audition Rivera gear. Select the switch, any of the knobs, or the jacks to get inside of Rivera. Take a look around our page. Let us know what you think, what you like, and what you'd like to see. And thanks for dropping by.