>      AC-3 has full bandwidth stereo surround channels.  However, AC-3
 > is also designed to be able to direct the bass in those channels to
 > either a single subwoofer, dual subwoofers, the main speakers, or 6
 > discreet subwoofers (or 5 full channel speakers and a sub).  It's
 > designed to be easily configured for the equipment you have or want
 > to use in those terms.  The question becomes, what is the *best*
       I spoke with the crew at Legacy a week or two ago about the same thing 
and to pick their brains of rear speaker selection for AC-3 with the "to sub 
or not to sub?" question in mind. They are undecided and waiting to see where 
it all leads. The real question will be just how much bass material will 
there 
actually be in the rear channels. You don't want to throw a lot of money into 
good quality subs for the rear if there won't be much for them to do. For now 
they advise a good quality full range and wait and see.
       I am going to wait and do it all at once, in a year or so. Subs, if 
needed, decoder, and anything else I might need. By then we should have a 
pretty good idea of the averages on bass level for the rears.
Cheers, John
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