I have had no experience with the subwoofer but the AV-HTB and SX-HTB are great sounding speakers and well constructed. They seem to be able to handle a good deal of pounding as I gave them as gifts to a nephew of mine and will be giving another set to another nephew soon( yeah, I have BIG extended family). They seem to like it and their parents hate me for it...but that is a story for another day. Incidentally, they refer to me as "Uncle Ciruits".
Get it, a great starter system for the enthusiast on a budget.