Yamaha G100-II Head

$625.00 Price Tier: Standard

5.0 (2)

1 Review

Find out who is using Yamaha G100-II

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2 saved

Page last updated Jun 11, 2026

Pricing and availability

We compare 600+ stores and found this item at 1 store. Prices updated November 4, 2025.

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Price

5.0 (1)

$625.00 1 available Used

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Average Price: $625

Standard/Professional

$300

$801+

Price Tier

In the Guitar Amplifier Heads category, Yamaha G100-II Head is priced in the Standard/Professional range. This is quality gear at a fair price point, suitable for beginners, hobbyists, and pros alike.

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Standard

High-end

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Description

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The Yamaha G100-II Head is a robust choice for guitarists seeking a reliable and versatile amplifier head for both stage and studio settings. Renowned for its solid-state technology, this amp delivers a clean, powerful sound that cuts through the mix with clarity. Ideal for a variety of music genres, it offers flexibility for musicians who need to switch between different styles effortlessly.

Equipped with a built-in spring reverb, the G100-II provides rich, ambient soundscapes that can enhance your performance and creativity. Its intuitive control panel allows for easy manipulation of tone and dynamics, giving musicians the power to craft their unique sound signature. The durable construction ensures this amp head can withstand the rigors of frequent use, making it a trusted companion for touring musicians.

From blues to rock, the Yamaha G100-II Head delivers consistent performance, ensuring your guitar tone remains pristine and dynamic. The simplicity of its design makes it user-friendly, whether you're a seasoned professional or an aspiring musician just starting out.

Key Features:

Solid-state technology for clean, powerful sound
Built-in spring reverb for ambient soundscapes
Intuitive control panel for easy tone manipulation
Durable construction suitable for touring and frequent use
Versatile sound suitable for multiple music genres

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 Yamaha G100-II Head.

Features and functionality

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The G100 II has a parametric EQ that allows users to fine-tune sound, especially useful for adapting to different cabs without changing the normal EQ settings.
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The tremolo speed knob on the MK1 version has a wide sweep for slow speeds, becoming very sensitive at higher settings, offering versatile modulation options.
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The G100-II lacks an effects loop but accommodates pedals well, maintaining a strong clean sound even at high volumes.
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The Mk1 version does not have a parametric EQ, which is a notable feature absent compared to the Mk2 version.
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User experience

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Owners report the amp as very clean and powerful, with a unique "immediate" feel compared to tube amps, and can amplify fret noise more prominently.
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Use cases and applications

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The G100 II is an excellent pedal platform, praised for its clean tones, making it ideal for use with modulation pedals and for genres like down-tuned sludge.
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This amp is compared to the Fender Twin Reverb for its clean tones, though it doesn't quite reach the Twin's level, offering deeper reverb and more tweakability.
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Comparisons

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Some users prefer the original G100 for its richer tone when both amps are dialed in, indicating a subjective preference for the first-generation model's sound character.
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The Yamaha G100-II is considered a cheaper alternative to the Roland JC-120, especially valued for its clean headroom and compatibility with various pedals.
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Mods and upgrades

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Experimentation with different speaker cabs, like the Randall Jaguar, has been noted to significantly affect the amp's sound, with some recommending Eminence speakers for similar tones.
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Value and pricing

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G100s are often found in the £100-150 range in the UK, indicating they are a budget-friendly yet valuable option for clean tones.
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Build quality

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The Mk2 is perceived to have better build quality compared to Mk3, with Mk3’s colored knobs sometimes viewed as less desirable.
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5.0 out of 5

Based on 1 Review and 2 Ratings

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hermanomad

156

over 8 years ago

Copy of the Fender Twin, search no further

For around 200 bucks, you can get yourself the steal of the decade with this solid state twin reverb version from Yamaha. It's a killer amp, awesome cleans, musical eq, shit distortion (get a TC Dark Matter of TC Tube Pilot for it). Sounds wicked!

Roles:

Guitarist Bassist Drummer

Genres:

Electronic Rock Folk, World, & Country

jimmarchi1

41029

8 years ago over 8 years ago

a solid state version of the twin would be more accurate, still, a really cheap winner when it comes to clean, 80s tones

hermanomad

156

8 years ago over 8 years ago

correct! I'll edit the review

Artist usage

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Billie Joe Armstrong

Singer, Guitarist

Green Day

Verified via Instagram

In this picture, Billie Joe Armstrong is seen using the Yamaha G100-II Head amplifier and Mike using his Gallien Krueger, as opposed to Mike who is often associated with the Yamaha and Billie with his other Gallien Krueger. Additionally, at the Davis Community Center, Billie Joe is observed using the same Yamaha amplifier and is most clearly visible at the beginning of the concert, when the lights are on.

J Mascis

Singer, Guitarist

Dinosaur Jr

Verified via Vintage Guitar® magazine

J Mascis confirmed his use of the Yamaha G100 Head in an interview with Vintage Guitar® magazine, where he stated, "I took it back to the store and got a 100-watt Yamaha solid state head just because I’d seen Hüsker Dü using one. I thought, 'If it’s good enough for Hüsker Dü…' But it didn’t sound very good; I didn’t know much about guitar stuff." He further recalled being advised to change the amp, but due to financial constraints, he continued using the Yamaha, which led him to start wearing earplugs because of the painful fuzz.