TWA slims down and adds more sonic versatility to an old favorite with the Triskelion Mk. III Harmonic Energizer pedal

When TWA first introduced the Triskelion pedal – the company's recreation of the legendary (and extremely expensive) '70s-era Systech Harmonic Energizer – in 2010, it immediately became a favorite of the likes of Dweezil Zappa, who used it to replicate some of the Systech-aided tones of his father, Frank.

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Jackson Maxwell

Jackson is an Associate Editor at He’s been writing and editing stories about new gear, technique and guitar-driven music both old and new since 2014, and has also written extensively on the same topics for Guitar Player. Elsewhere, his album reviews and essays have appeared in Louder and Unrecorded. Though open to music of all kinds, his greatest love has always been indie, and everything that falls under its massive umbrella. To that end, you can find him on Twitter crowing about whatever great new guitar band you need to drop everything to hear right now.