The speakers were more-or-less in the same position as the Axioms were. I've now moved them in away from the side walls another foot and forward about six inches, which is about as far from the walls as they can go. It's helped somewhat. There was previously an equipment stack in between the speakers when the Axioms were in place, I can't imagine it would've made a large difference. As for the room itself, there is already a thick wool area rug that covers about 2/3rds of the floor, but the walls around the speakers are more-or-less bare of anything sound absorbing. A floor to ceiling window that runs 4/5ths the length of the wall behind the speakers probably doesn't help. The amplifier itself shouldn't be a factor as it's generally run with the "main direct" function enabled, it bypasses pretty much everything except for the volume and input selection.
