I am the proud owner of the Bic Acoustech setup, I also own two x-ls speakers and my father owns the Ascends so I think I can have some helpful input on this. First off I think the sound of the Ascends is a little better than the Acoustechs but its difficult to compare the two since the Ascends are in a different price range. Even if one bought 4 170's for fronts and surrounds and one 340 for the center the price is still higher than the Acoustechs setup which comes with a pretty decent sub. For the price it's really difficult to beat the Acoustechs, I really prefer my x-ls's for music but when it comes to movies the Acoustechs can bring it. As far as weight I think people overestimate how large the towers are, sure they are tall but not very deep or wide at all. The weight is decent, could be better, but not as bad as sheep was describing them to be. They definitly don't vibrate. This possibly could be due to their main weakness which is the drivers, they are alright but no where close to the sound of the tweeter. Personally if you are building a system that is 90% movies and 10 percent music the acoustechs are the way to go. If you listen to as much music as movies or more music than movies then the Acoustechs will probobly leave you wanting a little more and upgradeitis is bound to set in.