Low LFE seems to be an issue with many DVD-A and SACD players from different manufacturers. I have a Pioneer 45A that has the exact same problem.
If you hunt around at the Home Theatre Forum there is quite a bit of discussion on the subject.
I have yet to hear a definitive explanation for why this is happenning, although I have an open case with Pioneer on the matter.
FTR, I am thinking of getting an ICBM to work around the problem.
BL