Founded by Luke Hilton in 2010, Stone Deaf FX is a boutique effects pedal and amplifier manufacturer based in Oldham, Greater Manchester, England. Hilton, who trained in electronics and mechanical engineering through an apprenticeship at BAE Systems, runs the company alongside a small team out of an old industrial spinning mill, maintaining roughly 90% of the supply chain within Britain. The company operates under the motto "Innovate not Imitate" and is known for incorporating parametric EQ controls — typically found on high-end mixing consoles — into its pedal designs.

Stone Deaf's lineup centers on gain pedals with unusually deep tone-shaping capabilities. The PDF-1 and PDF-2 are parametric distortion filters that double as overdrives with expression pedal control for wah-like sweeps. The Fig Fumb is a muff-style fuzz with parametric EQ and a built-in noise gate, while the Warp Drive is a high-gain distortion pedal with a six-position Q control for surgical frequency shaping. Other offerings include the Kliptonite, a dual fuzz/overdrive with a unique "mirror mix" circuit; the Tremotron, an analog tremolo with tap tempo and MIDI preset recall; the Rise & Shine, an octave-up fuzz combined with tremolo/vibrato; and the Noise Reaper noise gate. The company also produces the SD50 amplifier line.

Josh Homme of Queens of the Stone Age was Stone Deaf's first customer, and the brand's pedals have found their way onto the boards of guitarists including Nick Valensi of The Strokes, Duff McKagan, Josh Klinghoffer, Phil Campbell of Motörhead, Simon Neil of Biffy Clyro, and Alex Lifeson of Rush.

Stone Deaf FX has 19 products cataloged on Equipboard, including Distortion Effects Pedals, Fuzz Effects Pedals, and Overdrive Effects Pedals. Their gear is featured by 16 artists, with the strongest followings in Rock, Pop, and Funk / Soul. Notable users include Josh Homme, Matthew Bellamy, and Nick Valensi. Most Stone Deaf FX products fall in the mid-tier range — professional-grade without flagship pricing.