Voodoo Lab - Expanding the outputs of a Pedal Power 2 PLUS can be done using the Pedal Power X4 with its AC adapter connected to the rear courtesy outlet. Using this
VOODOO LAB(ブードゥーラボ) / Pedal Power X4 楽器周辺機器その他 | 中古品の販売・通販ならセカンドストリート
Voodoo Lab Pedal Power X4 4-output Isolated Guitar Pedal Power Supply | Sweetwater
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Voodoo Lab PPX4 Pedal Power X4 for sale online | eBay