As far as I can tell no one has tried this. Theory is that it may improve sound quality, but there's only one way to find out
My Avel-Lindberg transformer arrived yesterday, and my case from TF66 is on its way, so looks like I may be the first! The amp is an Odyssey Stratos Stereo Plus.
Been thinking about upgrading to Odyssey Monoblocks or a Wyred 4 Sound amp (neither of which are common ground) to get more power in the system so even if there's no difference or a degradation of sound with the AI-1, I should be able to use it down the road.
Hope to get it functional, if not finished, by this weekend. Stay tuned!