Axiom Home Page Forums General Discussion Home Theater Help....Sub SPL meter differences Receiver vs DVE?

Hello all. I have been using my Yamaha RX V2400's manual test tones to calibrate my speakers w/good results including the sub. My issue is that I have purchased and HK7300 that does not have a sub test tone. No problem right, just use a setup disk aka DVE. Problem is when I run that now, the cd matches the reading on the SPL meter almost EXACT w/the Yamaha EXCEPT the EP500 which shows to be 12db louder when output via DVE as opposed to yamaha. In a nutshell, w/the yamaha test tones, I get a sub trim right at 0db, w/the DVE it is still a bit hot at -10!! How will I compensate for this w/the HK7300?

Thanks all as always!!