The Double Helix™ Magnetic Soundhole Pickup – McPherson Stompboxes NZ

One of the Best Sound Hole pickups you will ever hear… and it’s passive

The Double Helix is a hum-cancelling, dual-coil soundhole pickup for steel-string acoustic guitars. It features a phase switch and a unique tone switch that allows players to easily change from a bright “GLOSS" setting to a more substantial “STEAM" setting