Yes, Rives' comments match my own using a McIntosh C42 preamp. With the tone controls equalizing the seating position (by the way, I don't walk around much when listening to music so this is fine for me anyway), the sound was better anywhere in the room. The modes don't change abruptly and they influence each other - like Rives found out. It is a complex 3D system with all frequencies affecting everything all at the same time. It is not at all straightforward, but having said that, the McIntosh did a fantastic job at equalizing the room.