ZVex Super Duper Concert Bass Mod: Subsonic limited edition with a Sunn O))) vibe

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The new ZVex Super Duper Concert Bass Mod pedal is a bass-heavy version of Zachary’s Super Duper pedal, and is due to make an appearance as a limited edition. ZVex Super Duper Concert Bass Mod Based on the ZVex Super Duper, which is essentially two Super Hard-On pedals stacked, this modded version is a bass […]