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Rivera Knucklehead-Tre 120 Top Guitar Amplifier Head  From Rivera

120watt, 2-channels, EL34 powered, high gain lead channel, footswitch

Rivera Amps

Available for Special Order

See something you like? This item is gone, but not forever. It can be special ordered, and even customized!

We can get it fast!

Because of our special relationship with Rivera we can get this as fast, or faster than anyone in the industry. In some cases, we even have preferred build slots we can offer you.

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What We Think

This is what high gain amplifier dreams are made of! and with the versatility of this EQ section and footswitch, you won't have much need for distortion or boost pedals. Ditch em! Use the bold tone from this amp head! However, with 120 watts, you know there is more than enough clean headroom to make your pedals sound their best, so get all your modulation effects on a board with the rivera footswitch and GO!

Manufacturer's Description from Rivera

Rivera Amplification unleashes the latest in our illustrious Knucklehead series of amplifier tops, the Knucklehead Tre!

Featuring outrageous amounts of gain - more than any of our amps before it - without losing any of our legendary note definition. Along with sustain for years comes a massive bottom end, totally controllable with our new and Patent Pending Foundation control.

Our Knucklehead Tr also features a new clean channel topology with tremendous headroom, for a stunning amount of rhythm dynamic range.

It's our Knucklehead to the power of Tr?!

It is complete with a new design: high gain, powerful, unlimited sustain, massive bottom end, gigantic headroom for rhythm, assignable effects Loop, amazing new Foundation control, distortion with definition and edge, highs without harshness but with full body, and low noise. It's the highest gain of any amp in the market.

Rivera Amps

About Manufacturer

In August of 1976, Paul Rivera founded Rivera R&D in Southern California to provide for musicians and the music industry leading-edge design, development, and manufacturing of products based on the philosophy that you, our client, are the center of our attention. It has been our driving force, from our early work in the 1970s with the who's who of the studio world, to our consulting work for many of the leading amplifier manufacturers, to today's extensive line of professional products that we proudly hand-build in the USA. Rivera is a privately owned company. We do not have to answer to shareholders. We answer only to you. Thankfully, in these times when other makers have taken their production offshore, closed, or allowed their products to deteriorate in quality and tone, we have prospered. This again is because of you, our loyal clients. Our continuing dedication to using only the finest of components in robust designs stands the test of time. Purchasing one of our amplifiers is a long-term investment in quality. You will still be enjoying your Rivera product long after our competitors' products are no longer serviceable and have been discarded. Only Rivera builds an all-tube stereo combo amp, the S120 series. Only Rivera builds an all-tube acoustic guitar amp, the Sedona. Only Rivera had the foresight and innovation to launch our powered subwoofer systems over six years ago. Every product in our line is dedicated to serving players and is designed to meet their needs. Years ago Rivera R&D was famous for complete effects racks and systems for bands and solo artists like Toto, Van Halen, Lee Ritenour, and many others. We are proud to launch our new Routmeister effects switcher, distilled from our years of signal-processing experience. This one product solves the frustration that many players have faced for years in organizing and controlling their stage systems. As we have grown, we have expanded our capacity to manufacture absolute top-quality amplifiers. We are now unleashing our new entry-level Pubster and Clubster series of amplifiers, compact beauties that sport all the quality of our more expensive models, with enough features and stunning tone to please the pickiest of players. For those of you purchasing a Rivera for the first time, welcome to our family. For those of you already in the family, hello again, and we are happy to be of service to you once more.


High Gain, Powerful, unlimited sustain, massive bottom end, gigantic headroom for rhythm, Assignable Effects Loop, amazing new Foundation control, Distortion with definition and edge, highs without harshness but with full body.Low noise, highest gain of any amp in the market.


  • 120 Watts RMS of luscious EL-34 Tube power
  • 2 Independent Channels powered by 5 12AX7 Tubes
  • 3 band passive interactive tone controls on each channel
  • Most high gain lead channel we have ever offered, sustain for years, packed with thunderous bottom end-totally controllable with our new and patent pending Foundation™ control
  • Clean Channel with massive headroom and dynamic range
  • New totally adjustable serial effects loop with hard wire bypass and footswitchable
  • Rugged Rivera® construction, with military and audiophile grade components, oversize transformers, and most of all, built to last
  • 3 function footswitch included

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