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Seymour Duncan Convertible 100

$440.00 Price Tier: Standard

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Page last updated Jun 17, 2026

Pricing and availability

We compare 600+ stores and found this item at 1 store. Prices updated June 17, 2026.

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Price

$440.00 9 available Used

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Average Price: $440

Standard/Professional

$300

$701+

Price Tier

In the Combo Guitar Amplifiers category, Seymour Duncan Convertible 100 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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Description

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Experience unparalleled versatility with the Seymour Duncan Convertible 100. This combo guitar amplifier is a true innovator in the realm of sound customization, designed for musicians who demand both power and precision. The Convertible 100 offers a unique modular circuit system that allows you to configure your tone like never before. With its ability to switch between different preamp circuits, you can easily morph your sound to suit any musical style—from crystal clear cleans to gritty overdrive.

This amplifier is equipped with a powerful 100-watt output, ensuring your sound is projected with authority. Its robust construction is designed to withstand the rigors of gigging, while still delivering studio-quality sound. The Convertible 100 is not just about power; it's about control. With its intuitive controls, you can effortlessly dial in your preferred tone, whether you are on stage or in the studio. Designed with the modern guitarist in mind, this amp also features a built-in effects loop for seamless integration of your favorite pedals.

Key Features:

Modular circuit system for customizable tones
100-watt power output suitable for live performances
Multiple preamp configurations available
Built-in effects loop for enhanced pedal compatibility
Durable construction ideal for touring musicians
Intuitive control panel for easy tone shaping

Videos

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Seymour Duncan

Joe Bonamassa Talks About the Seymour Duncan Convertible Amp

Seymour Duncan

The 100 watt Seymour Duncan Convertible Tube Amp

Vegas Cycling Freak

Seymour Duncan Convertible Rare 100 watt head

hyena429

Duncan Convertible Amp Guitar Tone

Jim Cutsinger

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 Seymour Duncan Convertible 100.

Features and functionality

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The amp includes 5 preamp modules with individual tubes, allowing rearrangement for varied sounds; however, older models often only feature the stock 2 modules.
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It has 2 input jacks, but the second input tends to be significantly quieter, affecting sound quality.
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The amp includes built-in attenuation and level control on the effects loop, features more common in modern amps but innovative for its time.
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The amp provides onboard 9V power for external gear, a feature that was noted in its initial marketing.
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Build quality

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Owners note the amp is exceptionally heavy, reportedly even more so than a Fender Twin Reverb.
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User experience

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Despite potential cosmetic wear, some owners have maintained units since the 1980s, suggesting durability.
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Value and pricing

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Modules beyond the stock pair are rare and hard to find, impacting the amp's versatility and setup potential.
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These amps have been noted to sell for as much as $3000, indicating a strong appreciation in value over the years.
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Setup and maintenance

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If experiencing popping or cutting out, check and possibly repair solder joints on the module connection pins.
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Comparisons

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The amp uses EL34 output tubes, similar to a 100w Marshall, offering comparable volume and presence.
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Use cases and applications

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Owners note the amp is a strong platform for pedals, providing a versatile sound foundation.
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Artist usage

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Gustavo Cerati

Singer, Guitarist

Soda Stereo

Verified via Photo

In the image you can see that gustavo appears with its typical Jackson SL1, in addition to being with an amplifier Seymour Duncan Convertible 100, which acquired during the time of Nada Personal. This image is from 1986, the time of Signos.

John Fogerty

Singer, Guitarist

Creedence Clearwater Revival

Verified via YouTube

In his 1989 live performance at the Oakland Coliseum, titled "John Fogerty & Friends," John Fogerty and Jerry Garcia can both be seen using Seymour Duncan Convertible 100 amplifiers. John Fogerty also used the Convertible 100 combo to record the "Centerfield" album (source: YouTube).

Drew Brown

Guitarist

OneRepublic

Verified via Twitter

"@SeymourDuncan First Convertible."

Ed Kuepper

Guitarist

Verified via facebookapp

Ed Kuepper confirmed on his Facebook page that his recording setup for an Aints record included "a stereo effects box with different delay times left and right into two different amps: a Fender Vibrasonic and a Seymour Duncan Convertible from memory."