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Tubeworks RT-2100 Head

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Page last updated May 18, 2026

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Description

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When it comes to delivering classic tube-driven tones with a modern touch, the Tubeworks RT-2100 Head stands out as a versatile powerhouse for guitarists of all styles. This innovative hybrid amplifier combines the rich warmth of traditional tube amplification with the reliability and efficiency of solid-state technology. Designed with both the studio and stage in mind, the RT-2100 provides a dynamic range of tones that cater to both vintage enthusiasts and modern players alike.

With a straightforward control layout, the RT-2100 allows for easy navigation between clean, crunch, and lead tones, giving you the flexibility to sculpt your sound precisely. The unique MosValve power amp section offers a robust response, ensuring that your guitar's voice remains full and articulate, no matter the volume. This head is equipped with a comprehensive EQ section, reverb, and an effects loop, providing you with the tools necessary to fine-tune your sound to perfection.

Whether you're crafting intricate melodies or driving powerful rhythms, the RT-2100's reliability and tonal variety make it a trusted companion for any performance scenario. Its sturdy construction ensures durability, making it a reliable choice for the road.

Key Features:

Hybrid design combining tube preamp with MosValve solid-state power amp
Three distinct channels: Clean, Crunch, and Lead
Comprehensive EQ controls for precise tone shaping
Built-in reverb for added sonic depth
Effects loop for integrating external effects processors
Durable construction suitable for both live and studio settings

Videos

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Living Room GD

I bought the Kyuss amp: This is THE sound!

Living Room GD

B.K Butler Tube Works MosValve RT-2100-ES Hybrid Amp Head demo

Noise Machines ATX

Reviews

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Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Tubeworks RT-2100 Head.

Features and functionality

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The Tube Works RT-2100 head includes a master volume, which allows it to be played quietly without significantly altering the tone due to its solid state power amp.
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A schematic is often needed to trace the signal path for troubleshooting channel switching issues.
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Use cases and applications

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Ideal for fans of Kyuss and Queens of the Stone Age, as its sound profile aligns well with their style.
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Comparisons

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It's noted that the 100w solid state power amp of this head is roughly equivalent to a 30-40w tube amp in terms of perceived loudness.
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Mods and upgrades

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An attenuator like the Harley Benton PA-250 or Captor X is recommended for better volume control at low levels.
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Setup and maintenance

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Channel switching issues can occur due to broken wiring on the foot switch circuit board; re-soldering may resolve intermittent switching.
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Some users experience problems with the front panel channel switch and intermittent foot switch input jack, suggesting potential maintenance needs.
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Artist usage

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Josh Homme

Guitarist

Kyuss

Verified via YouTube

Josh Homme used the Tubeworks RT-2100 Head, as seen in a performance at the Bizarre Festival in 1995, documented in a YouTube video by Andrew. This model is also likely featured in the "Green Machine" music video and may have been used during the recording of "...And the Circus Leaves Town" and the first Queens of the Stone Age album.