When using a PSA-230P in an 'daisy chain' configuration he may be to weak depending on the number of BOSS pedals used, the answer to this is our powerful PSB-230EU. It's design also allows a greater distance to the nearest power socket wich makes it ideal for live use. Can be used for all compact pedals, all twin pedals, and also for the V-Wah, PW-10, AD-3, ME-70, ME-50, ME-50B, ME-20, ME-20B, DR-3, TU-12EX, TU-12BW, TU-88, DB-90 and the Roland Mobile Cube