I have calibrated on several occasions and always get a difference in readings between my DVE disk test tones and my receivers test tones. My main and center is about 1 db difference and my surround channels show a 3db difference between the disc and the receiver. Also, when the DVE does the test tone sweep after calibrating each speaker I get fluctuations in the reading of +/- 2 db. I have pretty much given up on trying to balance my sub. On top of not being able to accurately read my RS meter for LFE since the indicator jumps around so much I understand that the LFE channel on the DVE disc is off and the RS meter is off by a certain amount on low frequencies. So I essentially don't know what me true LFE reading is. Does everyone have these problems or is it just me?