I just got the Kenwood DV-5700 hooked up for DVD-Audio and I am trying to calibrate my Marantz SR8300 with a pair of MA Silver 8's, silver center and Hsu STF-2 sub (SFX surrounds are hopefully coming very soon). When I do tests using SPL meter and SR8300 menu, I have to set up sub pretty low. However, on Kenwood DVD-A setup actually sub turns out pretty low and need to be turned up. To have sub properly levels in both setups I had to set the dial on the sub's amp to about 50% and -12dB on SR8300 level setup (other speakers are around 0dB) and Kenwood 5.1 channel setup has all speakers at -8 to -10 db and sub at 0 db. Now, when I have movies, the sub does not seem to produce level of oomph that I guess it should with 5.1 DD. What am I doing wrong? Should I not calibrate speaker levels? Marantz does not seem to allow to set sub level for each playback format, just a general setting for all modes.