Alchemy Audio

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Alchemy Audio builds, repairs and modifies guitar effects pedals, and amplifiers. We also buy, sell and trade gear! We are located in Minneapolis, MN.

Alchemy Audio builds, repairs and modifies guitar effects pedals, microphones and amplifiers - both vintage and modern. Our commitment to exceptional customer service and quality craftsmanship has created a growing legion of satisfied customers around the world. Feel free to contact us via phone, email, carrier pigeon
or telegraph to discuss your needs.

11/09/2026

I swear, the amount of different power supplies required for the Electro-Harmonix product line is staggering. For example, this Hog pedal requires 9V DC (center positive) with a 2.5mm plug. Many times owners send these oddities to the shop thinking they aren’t functioning when all they really need is the proper power supply.
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11/05/2026

Let’s give this vintage Ace Tone FM-2 Fuzz Master their flowers!🤘

09/25/2026

Whew! This build is not for those with a heart condition, shaky hands or low patience.
This faithful adaptation of the Univox Uni-Vibe really nails those syrupy, pulsing chorus & vibe effects.
Kudos to Aion FX for the excellent circuit and build instructions!🙌
This one is going out to a customer but I have another available. You can still choose your LED / k**b colors! DM for pricing.

09/03/2026

Here what the inside of a passive direct box looks like. This one needed a new transformer. Good for another 30 years!

08/18/2026

Often, the worse the pedal looks, the better it sounds. Case in point.
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08/12/2026

Although I lack space in my humble shop to service amplifiers on a regular basis, I always enjoy upgrading these Fender Champion 600’s. In addition to carefully chosen circuit mods, we install a better output transformer, a more breathable grill cloth, premium vacuum tubes and a high quality Weber speaker. The results are astonishing. I would put this up against amps five times the price. I wonder if Jeff Tweedy uses his.
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08/04/2026

I think I see what the problem is on this Midas DL32 stage box…

07/24/2026

I wonder if the folks at ProCo regret using these absolute garbage pots in their more recent Rat variant. Even after applying gentle heat, these things break. Luckily, better quality replacements are available and this will live to rock another day.

07/15/2026

First time modifying one of the signature Big M**f (Ram’s Head) versions. I’m a fan!

07/14/2026

Our modification service for the Ibanez TS9 Tube Screamer adds vintage NOS composite film resistors to the circuit for the 808 spec mod. We also add a relay-based true bypass circuit and a boost - which can be used together or independently from the Tube Screamer. It’s a labor-intensive mod to do correctly but the results are worth it!

Address

Minneapolis, MN

Website

http://www.alchemy-audio.com/

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