I am able to power my HX from my Truetone CS7 9v 500ma out with 2 of the plugs provided. The red and green one. Really made my day when I found that. And it worked.
Have you noticed any additional noise powering it that way? I've seen mention that powering it with other supplies works but also raises the noise floor a bit. Mine has been super quiet, so I can't imagine it being real different.
isn't going quite as quick as I'd like, but I've made enough so far to just cover everything I need for my HX board build. New board and cable kit yesterday, Strymon Zuma with mounting brackets and the two adapters (Voodoo current doubler and 2.1mm > 2.5mm adapter) today.