Interesting find! I'm all for maximizing the sound quality of my H9. Any further info or sound demos on this 9V/12V sound difference would be greatly appreciated.

Hoping someone at Eventide could chime in on this as well.. I mean, is it safe to use 12V with the H9? If it's not going to break anything, I'm getting a 12V compatible adapter just to test this for myself..

Cheers