I currently have a Kenwood VR-405 powering 4 Acoustic Research 206HO bookshelf speakers and a matching Acoustic Research center channel. I also have a JBL PB10 sub. I was thinking of purchasing a new receiver, not that my receiver is bad or anything, but I wanted to know if I can get a receiver with better quality sound for under $300. I mainly use my system for watching DVDs but I also listen to music with it once in a while. So far I'm considering the Yamaha HTR-5440, i can get it for around $260 shipped. Will there be a noticable increase in sound quality with this receiver or would I just be wasting money?