I have used an SPL meter and managed to achieve the 75db level for calibration etc. My only concern is that I have to go way up on the volume control, almost to the very top to get these levels. ie if I moved to a larger room, my pioneer would run out of breath, while my measly kenwood still do the work ? Why do I have to be running the Pioneer near its max when many have mentioned that normal listening requires far less power.