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Koch Amps "The Greg"

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Page last updated Mar 30, 2026

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Description

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Meet Koch Amps "The Greg," a versatile combo guitar amplifier that strikes the perfect balance between vintage charm and modern innovation. This amp is crafted for guitarists who crave both rich, clean tones and gritty overdriven sounds, making it a go-to choice for any gig or studio session. With its patented Enhance Boost feature, "The Greg" offers a dynamic range that elevates your playing experience, whether you're exploring blues, rock, or jazz. The all-tube design ensures a warm, authentic sound, while the custom Celestion speaker brings out the best in every note.

Designed with input from renowned guitarist Greg Koch, this amp is equipped with a responsive 2-channel system that allows seamless switching between clean and overdrive settings. The intuitive layout ensures ease of use, letting you focus on your performance without the distraction of complicated controls. Its compact size makes it a convenient option for musicians on the move, without compromising on the depth and richness of your sound.

Key Features:

Patented Enhance Boost feature for added dynamic range
All-tube design for warm, authentic sound
Custom Celestion speaker for optimal tonal clarity
2-channel system with easy switching between clean and overdrive
User-friendly control layout for intuitive operation
Compact design ideal for both stage and studio use

Videos

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Wildwood Guitars

The Greg Koch Signature Amp from Koch Amps, a.k.a. "The Greg" • Wildwood Guitars

Wildwood Guitars

2017 Greg Koch demonstrating 'The Greg' from Koch Amps @ Musik Produktiv Messe

Paul van Druten

The Greg Koch Signature Amp from Koch Amps, a.k.a. "The Greg" • Wildwood Guitars

Wildwood Guitars

SNAMM '18 - Koch Amps The Greg Demo

Premier Guitar

Koch amps: The Greg Signature amp Part 1 The DePrato files.

Koch Amps

Koch amps: The Greg Signature amp Part 2 The DePrato files.

Koch Amps

Koch amps: The Greg Signature amp Part 3 The DePrato files.

Koch Amps

Koch amp "The Greg"

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Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Koch Amps "The Greg".

Features and functionality

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The Greg is based on a 2x10 Vibroverb and includes reverb and harmonic tremolo, offering a unique tonal palette.
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The amp includes a unique "dimmer" feature that acts as a built-in attenuator, allowing users to crank settings without excessive volume.
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It has a switch to turn off the speaker, facilitating silent practice through DI-out or headphones.
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Use cases and applications

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This amp is noted for its versatility, capable of achieving both classic and modern rock tones, making it suitable for a wide range of musical styles.
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Recommended for those seeking a "forever amp," indicating its reliability and enduring appeal for serious musicians.
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Comparisons

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The Greg is often compared to other Fender-style amps, but its inclusion of harmonic tremolo sets it apart from many similar models.
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When cranked, the amp exhibits a character reminiscent of a boutique Fender attempting to emulate a Marshall.
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User experience

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Owners highlight the amp's ability to handle pedals well, enhancing its flexibility for various setups and genres.
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Mods and upgrades

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Users consider adding a treble booster to address muddiness when using the built-in boost.
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Value and pricing

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Priced around €499 for the 20W version in Europe, with a 45W all-tube version available for approximately €650.
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Artist usage

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Greg Koch

Guitarist, Singer

Koch Marshall Trio

Verified via Koch Amps

Greg Koch rcently released his new signature Koch amplifier as of earlier this year (2018). The Amp is an all tube guitar combo amplifier with built in Spring Reverb, OTS circut, Tremolo, and early 60's brown era Fender Harmonic Vibrato. The Amp also Includes a Clean Channel (With Boost) and an OD Channel (With Boost). The Speaker layout includes two 10-inch speakers (Vibrolux style). The Amps are available for purchase at the official Koch Amps webite found at: http://www.koch-amps.com/guitar_combo_thegreg.html