The 150i Aloia's were my favorite choice. I settled on those after using Cary200's and Wolcott. The hardest thing is to set them up properly with that large of a speaker. If you don't have room for them to breathe you won' t be impressed.
Dunlavy SC-IVa how best driven
I have been driving my B & W 801s with Northcreeks crossovers with Audio Reasearch Classic 150s upgraded with infinicaps. My preamp is an Audio Reseach Ref 2. Does the IVs require more power to sing? Thus far i've been quite pleased with the performance of my system, but after hearing the IVas driven by an x350 combined with a tube front end, I knew I had to upgrade the speakers.