Fender Musical Instruments Corporation (FMIC) is the world’s leading guitar manufacturer, and its name has become synonymous with all things rock ‘n’ roll. Fender manufacturers a huge line of guitar amps, bass amps, keyboard amps, and PA systems and also owns SWR, EVH, and many other guitar brands. Our service technician is "Gold" Certified by Fender. ADK Hifi offers Fender amp repair, California amplifier repair,San Francisco amp repair, SF Bay Area amplifier repair, tube amp repair, and Norcal amp repair for Fender amps.

LOUD Technologies Inc. is one of the world’s largest dedicated pro audio and music products companies. As the corporate parent for world-recognized brands including Alvarez, Ampeg, Crate, EAW, Knilling, Mackie, SIA and TAPCO, LOUD Technologies Inc. produces a wide range of digital recording products, loudspeakers, commercial audio systems, audio and music software, guitars, guitar and bass amplifiers, and orchestral string instruments. ADK Hifi offers Crate amp repair, Ampeg amp repair, California amp repair,San Francisco amplifier repair, SF Bay Area amp repair, tube amp repair, and amp repair for Crate amps and Ampeg amps.

Korg manufacturers pianos, tuners, metronomes, dance and DJ tools, processors, mixers, digital recording equipment, and software. Korg owns Marshall and Vox. ADK Hifi offers Marshall amp repair, Vox amp repair, Northern California guitar amp repair,San Francisco guitar amp repair, SF Bay Area guitar amp repair, tube guitar amp repair, and expert amp repair for Marshall amps and Vox amps.

Since 1887, when it began producing reed organs, the Yamaha Corporation in Japan (then Nippon Gakki Co., Ltd.) has grown to become the world's largest manufacturer of a full line of musical instruments, and a leading producer of audio/visual products, home electronics and other computer related products. ADK Hifi offers Yamaha amp repair, guitar amp repair,PA amp repair, yamaha amplifier repair, Yamaha amps, Keyboards, and PA systems.

Randall Smith has an ear for tone, a passion for tube technology, a vision for building high performance amps and an unwavering devotion to redefining what we think of as amplified guitar. At Mesa/Boogie, they only know one way to do things. They want to build the very best amplifiers as possible. ADK Hifi offers Mesa Boogie amp repair, all tube amp repair, mesa amp repair, boogie amplifier repair, tube amplifier repair, and repair for all Mesa Boogie amps and Mesa Boogie tube amps.

Hartley Peavey founded Peavey Electronics on the principle of providing quality MI products—namely instrument amplifiers and P.A. (public address) systems-at affordable prices, and this principle has spawned an array of guitars, basses, amplifiers and drums for an ever-expanding market that includes all levels of musicians. ADK Hifi offers Peavey amp repair, combo amp repair, 112 amp repair, 2x12 amplifier repair, and repair for Peavey amps.

Today's Gibson electric guitars represent the history as well as the future of the electric guitar. The models whose designs have become classics-the ES-175, ES-335, Flying V, Explorer, Firebird, SGs and Les Pauls-are a testament to Gibson's wide appeal. ADK Hifi offers Gibson amp repair, amp repair in California, amp repair San Francisco, amp repair SF Bay Area, California amp repair, all Gibson amps.

In the mid 1960’s Bud Ross battled the odds to combine America’s love of music with the passion for high-speed hot rods. Ross experimented with covering speaker cabinets with the same colorful Naugahyde material. Musicians responded enthusiastically! Today Kustom honors its trend setting past by building award-winning amplifiers and P.A. systems. ADK Hifi offers Kustom amp repair, California tube amp repair, amp repair SF Bay Area, amplifier repair in San Francisco, Kustom tube amp repair, and repairs for all Kustom products.

Line 6 set out to meet the needs of today's guitarist by harnessing technology to turn a wide range of great tone into a reality for every guitarist. Line 6 amassed a noteworthy collection of sought-after vintage amps and effects, and started meticulously measuring and analyzing every tonal aspect of the amps, effects and their associated circuitry. ADK Hifi offers Line6 amp repair.

Since it was founded in 1986, NHT® continually challenges the notion that the high-end means high-price. NHT takes pride in designing, manufacturing and marketing loudspeaker systems that provide a lifetime of listening pleasure. Its products from past to present speak volumes of NHT’s dedication to sonic excellence. ADK Hifi is the only authorized NHT repair center in the United States.

ADK Hifi specializes in vintage audio repair, modifications, and restoration. Our technicians have a passion for vintage tube and solid state audio equipment. Be assured that your vintage audio equipment will be in good hands if you choose to have ADK Hifi service them, as we understand the value and personal sentiment these vinatge products bring to collectors, investors and owners. ADK Hifi offers expert vintage amp repair in San Francisco, the SF Bay Area, and Northern California.