Avalon like many others (my Sonus faber had potted XO) pot their XO
to obscure both the componets types, quality & circuits. From idle eyes
& hands
Rick's XO is his creation, hence the proprietary designation.
Nice desgin...nice construction & execution.
I'm they sound wonderful. Well done 3 ways are quite good.
quite often better than 2way + sub (s) imho