Mercury Magnetics, Classic Tone, Heyboyer, to name a few
Auricap, Alessandro, Mallory, JJ/Tesla, MOD, Orange Drop, Sprague Atom and more...
Dale, Holco, Kamaya, Caddock and more...
Neutrik, Switchcraft, Rean, Canare, Mogami, Marinco, custom teflon and silver cable and more...
Altec, JBL, Celestion, Electro-Voice, Eminence, Fane, Jensen, Weber...
Some of the brands we use in our work
Cable and Connectors
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.
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
Portland Pro Audio 611 N. Tillamook St., Portland OR 97227 503-406-1881