Well, I'm not entirely certain how in hell this adapter works- but I discovered that instead of lugging around half a dozen adaptors that I can get away with using just a "daisy chain" style adapter for one of my pedal boards- The boss adapter runs from a boss a/b ,through a Deep impact, Digitech synth wah, Tech 21, compactor & BDDI and an old boss HM2. Now the guy in the store assured me that this would be fine. all of the above run on 9 volts and it's a gift from heaven not to deal with so many adapters.. ... But does anyone else here run one of these? I'm a little terrified that I'm going to end up baking the circuitry on all of these pedals if anything goes wrong.