Somehow while setting up a roomEQ setting in Vox's Audio Units, I was able to save a preset but I can't duplicate it from within Vox again.
Tonight I looked into using AU Lab, copy the Vox Graphic EQ setting and use the "save preset" feature. Going into Vox's Audio Units and loading the Graphic EQ... low and behold my preset was there.
I use a pink noise audio file and use an analyzer (Octave RTA) on my iPhone to "flatten" the spectrum for my listening area. It's a long way around a simple problem but at lest it works.