Built in the USA, to last.

Derringer Products, LLC started in 2007 as Derringer Amplifiers, a subsidiary of American Contract Manufacturing. Phil Bernstein founded A.C.M. in 2001 as a manufacturer of high-end audio equipment and other products.

Phil had played guitar for years and found the headphone amplifiers on the market short of the sound he wanted. He put more than 25 years of design and manufacturing work — military, aerospace, and pro audio — into his own products.

He later joined with Ross Hagopian, who has more than 35 years in manufacturing: aerospace design, test equipment, and cable assemblies. They manufacture in the USA and use high-grade components. The line is “making sound better.”

Products sold by authorized dealers carry a five-year warranty to the first purchaser against defects in material or workmanship under normal use. Derringer Products, LLC, 5235 Mission Oaks Blvd, Unit 774, Camarillo, CA 93012.