Guys, I've just received my SR4300 and hooked it up. My first impressions are good - great sound quality and build quality. However, i've noticed that there is very little bass. I'm running a pair of floorstanders (they are DIY speakers - design taken from Audax website). I tested the speakers with an old 30watt pc mini system, and had the perfect amount of bass. However, the Marantz only produces very weak bass. It could be that the treble is too high, therefore meaning that i'm keeping the volume down. What volume do most people use for average listening? Any ideas? Could the amp be a duff? Help!!!!