I'm just letting you know where the 10dB boost is used. LFE is not always on, just where the sound track has use for it. Also, in Dolby Digital, or any surround mode, you are now pushing the bass into the mains from any other speaker you have set to small. Since you have not posted your complete setup and settings, it makes it very diffcult to troubleshoot.

The easiest solution for Outlaw would be to set up the speaker trim for each input seperately,and get rid of the 2 channel offset altogether. Actually, any pre/pro at this price range should have it anyways, IMHO.