Jaybo is right - speakers are the key. The 6300 and the 6900 do NOT sound similar. The 6900 is all about smoothness and coherence whereas the 6300 is about impact and agility. A nice middle-ground, and not just in the name, is the 6500.
Also, what would you change in the way your current system sounds?
Arthur
Also, what would you change in the way your current system sounds?
Arthur