By traditional I mean have two large tower speakers as your front and left mains. As always I am thinking about the future and possible upgrades, and I was thinking about possibly doing a system without tower speakers up front. With some great bookshelf speakers like the new Polk LSi line, n0rh, Swan Diva, and some others out there I was wondering how much (if anything) you would lose. Let's say your system was not receiver dependent, meaning that you had a top of the line receiver or pre/pro so that it is not a factor. If you had Swan Diva or n0rh bookshelves all around would you be losing something when comparing it to having towers up front. Has anyone done a sort of a/b comparison like this? I'm sure the argument will be that you would have a "larger" and more enveloping sound with towers, but from the reviews and personal testimony, I'm not sure that bookshelves can't accomplish the same thing. The obvious benefits to me would be the lower price tag for high quality equipment, and you would have more flexibility in positioning. Any opinions or even speculation would be helpful.