I’ve not heard the Auva Isolators, unfortunately. It’s hard to quantify the level of improvement, but Townshend further improves on what the Gaia brings. Better vibration management, which delivers a bit more clarity, in the microdetails and speed… enough that they will stay. I did buy the Townshend at a dealer rate (since I am a dealer) and don’t know if I would have ever purchased them at full price. I would never hesitate to spring for Isoacoustics at their full price. They have always gotten me most of the way there at attractive price points. There are definitely diminishing returns in the higher level competitor products but like the Townshend, I’m certain they can also deliver at a higher performance.