I have a Seamoon Funk Machine envelope filter that is pretty old, and was, at some point, apparently somewhat valuable. I am considering using a 9v clip adapter from my Boss power supply to power it, but would likely have to file or cut a small notch for the cable so it all closes up correctly. Currently using a battery, but would like the presumed benefits of AC power. How much, if any, is this likely to devalue it? Even worth worrying about at all, or should I just do it already? Thanks.