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Monster Effects

Monster Effects was the creation of electronics wizard, John Spears. John combined his obsession for the brown face tremolo sound and his electronics experience to create the original Swamp Thang. The response to the unit inspired john to launch Monster Effects in 2001. Since it's inception, the Swamp Thang has become a favorite among touring musicians and studio types as well. The Mastortion pedal and it's no holds barred tone was designed for the fellows from Mastodon and it sounds exactly like it should. Ragingly heavy and extraodinarily loud!!

In 2019, Scott Hager, long time dealer of Monster Effects, took over the production from John and has carried on building these fantastic pedals. All products are hand built in the U.S.A and Canada.