I've still been considering the W4S amps with my HT3s. This weekend a friend lent me a BelCanto Evo4 mkll amp to try. I have to say I am quite impressed. It really made the HT3s come alive in a way I haven't heard. I'm running the amp SE in bridged mode so the specs say to expect 400w into 8ohms. It has a very bouncy, quick (pratty) sound. I'm using a tube pre and tube output disc player with it.
Regarding the W4S amps, would it be better to try the sx1000 and bi-wire to the terminals on the HT3 or get a 4 channel version and bi-amp the speakers? I'd lean to the larger amp as I have no experience with bi-amping.
Andy