Monster Effects Swamp-Thang

The Monster Effects Swamp-Thang is a tremolo pedal, a design that varies the volume of your signal up and down to produce a pulsing, shivering effect. Monster Effects built it alongside other pedals in its range, including the Mastortion overdrive, which Premier Guitar reviewed at the same time¹.

Controls

The pedal's single documented control is the Speed knob, which sets the speed of the tremolo effect. How fast the pulse runs is the main thing a player adjusts on any tremolo, and on the Swamp-Thang that range leans toward the quick side: Premier Guitar's reviewer found that even with the knob fully counter-clockwise, the effect was still rather quick and hardly subtle¹.

That matters if you want slow, swampy volume swells rather than a fast chop. Based on the reviewer's account, the lowest speed setting on the Swamp-Thang does not settle into the slow end of what a tremolo can do, so players after very slow pulses may find the range limited¹.

Videos

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