AU24 vs PAD Aqueous Any thoughts

Anything has A/B AU24 vs PAD's Aqueous (AA) ? Right now I am using AU24 and wonder if the AA will be an upgrade or not (and also the difference I expect). Ideally I want to try it in my own system but it will be difficult to get a loaner pair.
Associated equipment is Gershman speakers driven by Anthem pre/amp combo. IC used is Nirvana SL and Shunyata Aries.

Any thoughts will be appreciated.