Okay, so I don't own a #1 Echo... yet. I'd like to give one a try in a shop first, but I might order one instead! For those who don't know already from prior threads, it's EHX's new compact digital delay pedal. I made a dedicated thread because I aim to review it eventually and post that here! In the meantime... I e-mailed EHX with a question regarding its power supply. Apparently, it comes with one. So, I asked them why, and here's what I found out: It runs at 9.6VDC, 200mA Its plug is center-negative, Boss standard It doesn't run on batteries It should work fine with an ordinary power supply/brick My guess is, the circuit is too large to allow room for a battery, or the power requirement really is up there at 200mA, so the battery wasn't practical. It is digital, so the power requirement thing is probably the more likely reason. Anyhow... someone go buy this thing and review it so I won't be alone! EDIT: I've already ordered one. Stay tuned for the review!