Revv Amplification has officially raised the bar for portable guitar synthesis with the launch of the G25 Tube Amp Head. Combining the raw power of a boutique 25-watt tube section with the industry-leading digital integration of Two notes Audio Engineering, the G25 is a formidable successor to the legendary G20.
Designed for the modern guitarist who refuses to choose between “real feel” and “convenience,” the G25 packs high-gain brutality and crystalline cleans into a compact, Tolex-wrapped headshell that fits in a backpack but sounds like a stack.
Precision Meets Brutality: What’s New in the G25?
The G25 isn’t just a minor spec bump; it’s a complete refinement of Revv’s “Generator” platform. By moving to a 25-watt 6V6 power section and incorporating larger transformers, Revv has unlocked a level of headroom and low-end authority previously unheard of in the compact amp category.
Key Features at a Glance:
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Genuine Tube Tone: Driven by 2 x 12AX7s and 2 x 6V6s for punchy, musical response.
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Two notes Integration: A built-in reactive load and IR loader allow for silent recording or direct-to-PA performance without a speaker cabinet.
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Enhanced Tonal Sculpting: Includes a 3-band EQ, transparent buffered FX loop, and a built-in “tight” noise gate for high-gain precision.
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Modern Workflow: Full MIDI programmability, USB connectivity, and an included 4-button programmable footswitch.
The Death of the “Modeler vs. Tube” Debate
For years, guitarists have wrestled with the choice: the convenience of digital modelers or the soul of a tube amp. The G25 settles the score by offering both.
With the Two notes Reactive Load, the amp “sees” a speaker even when one isn’t connected. This means you get the sag, compression, and harmonic richness of glowing glass valves sent directly to your headphones or DAW via XLR. Whether you’re using the six onboard virtual cabinets or diving into the Torpedo Remote app for deep editing, the G25 delivers mix-ready tones instantly.
Technical Specifications
| Feature | Specification |
| Wattage | 25 Watts (Switchable Low-Power Mode) |
| Power Tubes | 2 x 6V6 |
| Preamp Tubes | 2 x 12AX7 |
| Weight | Ultra-Portable / Compact Tolex Headshell |
| Outputs | XLR Balanced Out, 1/4″ Speaker, 1/4″ Headphone |
| Digital Tools | Two notes IR Loader (6 slots), Digital Reverb |
| Included | 4-Button Programmable Footswitch |
Frequently Asked Questions (FAQ)
Can I use the G25 without a speaker cabinet?
Yes! Thanks to the built-in Two notes Reactive Load, the G25 is perfectly safe to operate without a cabinet. You can send your signal directly to an interface or PA via the XLR output.
Is 25 watts enough for a live band?
Absolutely. The G25 utilizes larger transformers than its predecessor, providing significant headroom and “thump” that allows it to keep up with a heavy-hitting drummer in a live environment.
What is the “Generator” platform?
The Generator series is Revv’s flagship high-gain circuit. The G25 scales this world-class boutique tone down into a portable format, covering everything from “Red Channel” brutality to “Blue Channel” cleans.
Can I use my own Impulse Responses (IRs)?
Yes. While the amp comes with six premium virtual cabinets pre-loaded, you can use the USB port to load your own favorite IRs via the Two notes Torpedo Remote software.
The Verdict: Is the Revv G25 Worth It?
The Pros:
The G25 is a masterclass in utility. It solves the most common “rig problems”—noisy stages, heavy lifting, and inconsistent miking—before they even start. The addition of the 6V6 power section gives it a “big amp” feel that beats out almost every other lunchbox head on the market.
The Cons:
Traditionalists who only want a “plug and play” vintage experience might find the MIDI and USB options overkill, though these features are easily ignored if not needed.
Final Thoughts:
If you are a session pro, a home studio enthusiast, or a touring metalhead, the Revv G25 is perhaps the most complete amplifier currently on the market. It offers the uncompromising soul of a boutique tube amp with the surgical precision of modern digital technology.
Rating: 9.5/10 — The New Gold Standard for Portable Tube Amps.
Where To Buy
Available at Andertons – £1449
Available at Sweetwater – $1499
More Information
#REVV Amplification #G25
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