Well I already have a Denon avr2807 receiver and a Velodyne DLS4000R sub woofer. I'm looking for a 5 channel setup and have my eyes on the polk audio TL150 speakers but i hear so many people complain that the sound quality isn't very great when you buy speakers bundled together like that. Also I been mainly looking on Ebay to purchase used speakers from a private party but not sure if that's wise lol. Any advice would be much appreciated thank you. I'm also a big fan of Polk Audio btw lol.