It does indeed work. Yes, I used three 8800 flex adapters. I didn’t play with the QC at all last night but I did power it and left it plugged in a few a few. Worked great. I still have an open port on my DC7 and I’m powering 5 other pedals and the percentage light on the bottom is on 40%. So so far, so good. I was told by a pretty trusted source that he uses the DC7 to power his QC. And if this person can, I’m fine with it as well. Just needed those cables was all. I mean, the DC7 can output 6W.....I think it’ll be fine.