Gorilla is a budget line of solid-state guitar amplifiers that emerged in the mid-1980s after Howard Chatt acquired Pignose Industries in 1985 and renamed the company Pignose-Gorilla, operating out of North Las Vegas, Nevada. While the Pignose name continued to carry the company's portable battery-powered amps, the Gorilla badge was applied to an affordable range of low-wattage practice combos manufactured in Taiwan and later elsewhere in Asia.

The brand is best known for small entry-level amps like the GG-20, a 20-watt solid-state combo with two-band EQ, a distortion channel, a Tube Stack switch and a headphone jack that became a common first amp for young guitarists through the late 1980s and 1990s. Other models in the lineup included the GG-10 and the GG-25 "Tube Cruncher," along with related TC-series combos (TC-35, TC-65). An early Gorilla model is sometimes cited as one of the first amps to suggest tone-control presets in its manual for emulating the sound of other well-known amplifiers, an early nod toward what would later become amp modeling.

Gorilla gear sits firmly in the beginner and practice-amp category rather than the pro-stage market, and the amps have largely retained their reputation as inexpensive, durable starter combos rather than boutique or professional rigs.

Gorilla has 10 products cataloged on Equipboard, including Combo Guitar Amplifiers, Bass Combo Amplifiers, and Guitar Amplifier Heads. Their gear is featured by 4 artists, with the strongest followings in Rock, Metal, and Pop. Notable users include Jack Blades, Mark Holcomb, and Jesse Hughes.