Golden Phi Amplification Engineering
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Don Mills, Owner Builder
 The Golden Phi
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About Golden Phi Amplification Engineering
We build quality, roadworthy tube guitar amplifiers.  Durability and innovation are our hallmarks.  Quality components.  Quality construction.  Golden tone.  Our amps go to 12.

Golden Phi Amplification Engineering is family-owned and operated right here in Seattle, WA.  Since our company opened, we’ve treated every customer like they were a part of our family.  Our products and services are as good as the best, and come with a personal guarantee.
Don started playing guitar in 1962--through a tube amplifier.  He built his first tube amplifier in 1967.  You can hear him playing around Seattle with his band, Durable Goods, through his Gold Nugget, a 5E3 Tweed Deluxe style amplifier.  It goes to 12.
The Golden Phi, represented by the Greek letter phi, is also known as the goldent ratio: 0.6 : 1.0 : 1.6.  This ratio inspires our speaker cabinet dimensions for both excellent visual appeal and extraordinary acoustic vintage affect.  It is the gold standard.
Committed to helping our customers achieve their tone.