Mercury Magnetics, Classic Tone, Heyboyer

Sonicap, Alessandro, Mallory, JJ/Tesla, MOD, Orange Drop, Sprague Atom, F&T, Nichicon Muse

Dale, Holco, Kamaya, Caddock

Neutrik, Switchcraft, Rean, Canare, Mogami, Marinco, custom teflon and silver cable

Altec, JBL, Celestion, Electro-Voice, Eminence, Fane, Jensen, Weber...

Transformers;

Capacitors;

Resistors;

Cable and Connectors

Speakers;

Component Brands

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It that 'grail tone' eluding you?
Is your amp breaking up too soon, or not soon enough?
Ghost notes when playing loud?
Running hot maybe?
Excessive hum and noise?

We offer various levels of upgrade to power supplies, transformers, caps, resistors, tubes and more. We use only best sounding parts, and silver solder.

Guitar Amp Mods and Upgrades

We can make your newer stock amp sing like a classic or roar like a beast!

Upgrades for any amp and most budgets

Convert your Silverface Fender to a Blackface Fender

Portland Pro Audio 611 N. Tillamook St., Portland OR 97227 503-406-1881