The DC Jack fits the adapter it came with just fine, but it doesn't seem to want to fit the daisy chain from my 1 spot adapter. What's up? They're both the normal DC 9 Volt negative tip, but for some reason the little pole in the Jack seems to be bigger than it should be or something.

Has anyone else run into this problem? What should I do?
Yeah I just checked the adapter now could have sworn it was 18v This is really annoying as I now have 2 pedals I can't power off the 1 spot and barely any plugs.