the only way to know if a system is accurate is to measure at the listening seat and verify & adjust with recordings made in the same room.\n\nLet's say you are intimately familiar with the sound of the drums in your room. \n\nThen you did an Auto Room EQ. Multiple graphs confirm that the FR of the drum sound is ruler-flat. \n\nSetup#1. But when you verify to make sure that it sounds exactly like the drums, it doesn't sound quite like it. Something is off. The graphs all show that the FR is extremely accurate. But the sound is not like the real drums. \n\nSetup#2. Then when you bypass the Auto Room EQ, the graphs are no longer perfect ruler-flat. But now the sound is exactly the same as the real drums. \n\nWhich setup would you keep?