Video Asylum

Posted by GM on November 28, 1999 at 07:52:42:

In Reply to: question about freq. cutoff of LFE channel of AC-3 posted by Phil on November 26, 1999 at 22:26:43:

I believe that different DVDPs manage bass frequencies differently and will allow some flexability as far as the cutoff is concerned. In DD, you often have the options to select "small" or "large" main speakers and this will determine the cutoff for the mains/LFE in some cases. (I know the THX spec is 80 Hz and I think in most cases the LFE follows the same rule and that much above that, subwoofer localization becomes an issue.)
Hope this helped!