I tested this with my friend system some time ago and when nicole kindman's character got infection there was huge excursion in those 12" woofers(could be some high level 5-15hz bass?). Btw same movie invasion and the invasion krypto.
FWIW, I've tried my copy of the Haunting with the audio switched over to the 2 channel Dolby Digital track that comes on it. That really kills the bass. Not sure what's different between it and the 5.1 channel DD soundtrack on the non DTS release.
Come to think about it, I find that a little odd - that the DTS version has this awesome DTS-ES soundtrack on it and no equivalent 5.1 Dolby Digital for those who couldn't decode DTS. Just that measly 2 channel version. None of my other DTS-ES DVD titles are set up like that.