I was going to suggest the amp. I have the earlier AVR, the 3010. I used that and an old Yamaha amp at 150wpc to drive my speakers. I switched between them and didn't really hear much difference. Through a recommendation from a 'goner, I upgraded my amp - to a used one from here, different member though. Unbelievable difference!!! The quantity and quality of bass means I don't use my sub for 2 channel, and the imaging and details improved greatly. My room isn't 'tuned' or treated and is very live, but I can totally relate to the improvement you noticed. I bet I put off the upgrade-speakers bug for at least 6 months:) I have lots of work ahead of me to get the most out of what I have, and there will be upgrades, but that one change was huge for me.
Beaverlake, what sort of room changes have you done? My room needs work, but since it's the family room as well, I don't have a free license to do anything.
Beaverlake, what sort of room changes have you done? My room needs work, but since it's the family room as well, I don't have a free license to do anything.