Two-Rock Crystal

$3,610.00 Price Tier: High-end

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Page last updated Jan 30, 2026

Pricing and availability

We compare 600+ stores and found this item at 1 store. Prices updated January 30, 2026.

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Price

$3,610.00 1 available Used

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Average Price: $3,610

High-end/Boutique

$300

$801+

Price Tier

In the Guitar Amplifier Heads category, Two-Rock Crystal is priced in the High-end/Boutique range. This premium gear is built to very high standards and offers premium features.

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High-end

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Description

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The Two Rock Crystal amplifier offers a pristine sonic experience for discerning musicians who crave clarity and dynamic response. Inspired by the revered John Mayer signature amp, this model distills that rich, harmonic tone into a more approachable package, making it ideal for stage performances and studio sessions alike. Whether you're playing in intimate venues or larger auditoriums, the Crystal provides an immersive auditory experience with its exceptional drive channel that delivers both crisp cleans and creamy overdrives.

Crafted with precision, the Two Rock Crystal is available in multiple wattage options, including 22, 40, 50, and 100 watts, ensuring there’s a perfect fit for every guitarist's needs. Its versatile controls allow for detailed tonal shaping, while the robust build ensures durability and reliability over years of rigorous use. Musicians will appreciate the amp’s ability to convey the subtlest nuances of their playing, making it a favorite among professionals seeking both quality and authenticity in their sound.

Key Features:

Available in 22, 40, 50, and 100-watt versions
Inspired by the John Mayer signature amp
Exceptional drive channel for versatile sound
Offers clear cleans and smooth overdrives
Ideal for both live performances and studio recordings
Comprehensive control for detailed tonal shaping

Product specs

Brand	Two Rock
Model	Crystal 6V6 40-Watt 1x12" Guitar Combo
Finish	Various
Year	2014 - 2017
Made In	United States
Categories	Guitar Combo Amps
Color Family	Black
Electronics	Tube
Output Power (Watts)	40
Reverb	Spring Reverb
Speaker Configuration	1x12"

FAQs

What are the core tonal characteristics of the Two Rock Crystal amplifier?: The Two Rock Crystal amplifier is known for its rich, clear tones with a focus on clean headroom and harmonic overtones. It offers a versatile sound suitable for both clean and overdriven settings, maintaining the guitar's natural voice.
Is the Two Rock Crystal amplifier suitable for gigging?: Yes, the Two Rock Crystal's 40-watt output is powerful enough for gigging in various venues, providing ample volume and dynamic range for live performances.
Does the Two Rock Crystal amplifier take pedals well?: The Two Rock Crystal is designed to work well with pedals, offering a transparent tone that complements effects without losing clarity or character.
What kind of reverb does the Two Rock Crystal amplifier have?: The Two Rock Crystal amplifier features a spring reverb, which adds a natural and warm ambient effect to your sound.
What type of tubes does the Two Rock Crystal amplifier use?: The Two Rock Crystal amplifier uses 6V6 tubes, known for their smooth and creamy tone, contributing to the amp's overall warm and dynamic sound.

Videos

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Rob Chapman

Two Rock Crystal vs Original John Mayer Sig Amp

Rob Chapman

Two-Rock Crystal - Tone Sampler

premierbuildersguild

Two-Rock Crystal Head with Fender Custom Shop Strat and b3 Phoenix

CodaMusic Stevenage

Two-Rock "Crystal" Combo | CME Gear Demo | Alex Chadwick

Chicago Music Exchange

Two-Rock Crystal 100 by Guitars Rebellion

Guitars Rebellion

Two-Rock 22 Watt Crystal Amplifier Demo

intheblues

NAMM 2014 Archive - Two Rock Crystal 15th Anniversary Amp 'Closest to John Mayer Signature'

Andertons Music Co

Max Guitar - Two-Rock Crystal Amp at Messe 2014

Max Guitar B.V.

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 Two-Rock Crystal.

User experience

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Owners highlight the amp's "3D dimensional clean tone" and "massive bass," emphasizing its exceptional performance in clean sound reproduction.
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Users experience difficulty dialing in the perfect tone due to the numerous controls, including push-pull pots and rear rotary switches, especially those accustomed to simpler amps.
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The Classic Reverb Signature's 100w mode offers immediate attack and responsiveness, making it unforgiving of mistakes but rewarding precision with clarity.
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The amp is loud when paired with an OCD pedal, even more so with unpotted pickups.
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Features and functionality

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The amp is noted for having a "disturbing presence," suggesting it delivers powerful and resonant sound even at high volumes.
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The amp excels in clean tones but may not be versatile for other styles, as it is stated to "do the clean thing to perfection" but not much else.
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The Classic Reverb Signature offers extensive tonal customization with switches like deep, rock/jazz, and contour, enhancing versatility across different guitar types.
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The amp's built-in reverb is noted for its versatility, offering three modes of spring reverb from subtle to heavy, suitable for diverse styles.
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The amp offers a soft attack, which is uncommon for its size, while still providing tight bass and incredible sustain.
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Setup and maintenance

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Some owners have encountered setups with "drillholes everywhere" due to modifications, suggesting care is needed when altering the amp's configuration.
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Use cases and applications

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A suggestion to run a stereo power amp from the loop send for a wet/dry/wet setup enhances the amp's 3D sound capabilities.
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The Classic Reverb excels with a 335 in the middle position, delivering a deep, warm tone reminiscent of John Mayer's "Edge of Desire."
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Comparisons

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Unlike Fender amps, the Classic Reverb Signature reduces treble, providing a distinct sound that diverges from a traditional Deluxe Reverb.
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The amp's bass response is likened to that of a big Marshall, yet remains perfectly clean.
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Mods and upgrades

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An Analogman Mini-Chorus is recommended over the Sea Machine for better basic chorus sounds.
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Value and pricing

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The head is priced around $3,100 and the cab approximately $1,100.
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Artist usage

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Eric Gales

Guitarist

World-Wide-Funkdrive

Verified via YouTube

Eric Gales plays through a Two Rock Crystal combo in this Dunlop Sessions gig, and it can be seen at 0:21.

RJ Thompson

Singer, Guitarist

Verified via Photo

RJ posted a picture on Instagram prior to his show at the Manchester O2 Apollo. The picture featured his two strats... one white and one sunburst, standing in front of a Two Rock Crystal amp.