Sommatone Amplification is a boutique tube amplifier builder founded by Jimmy Somma, who began repairing and building amps as a part-time venture in 1994 before opening full-time in 2001. Originally based in Somerville, New Jersey and later operating out of Austin, Texas, the company builds hand-wired, point-to-point amps with custom chassis design, emphasizing signal purity and tone.

The lineup centers on the Roaring 20 and Roaring 40, EL84-powered designs (the 40 offering a half-power switch to 20 watts), alongside the 6L6-based Class A Overdrive 35 and the high-gain, 6550-driven Outlaw aimed at hard rock and metal players. The Slick 18, a lower-wattage signature model developed with David Bowie guitarist Earl Slick, is one of the brand's best-known amps and grew out of Slick's early endorsement of the company.

Sommatone has cultivated a reputation in boutique amp circles for meticulous build quality and a vintage-inflected voicing, with coverage in Premier Guitar and Vintage Guitar magazine. Jason Isbell is among the players who have used Somma's amps.

Sommatone has 1 product cataloged on Equipboard, including Guitar Amplifier Heads. Their gear is featured by 2 artists, with the strongest followings in Rock and Folk, World, & Country. Notable users include Jason Isbell and Mike Cooley.