I don't remember the name of the brand of speakers, but there's one I remember from a few years ago that's a gargantuan setup. It's basically a huge wall of drivers and prices at $1M.
Interesting website about cost vs. performance:
http://www.dgibbons.members.sonic.net/essay4.html
That's cool about your Dad, though!
EDIT: WAITAMINUTE!!! Russound is in Newmarket?!?! HOLY CRAP! I went to UNH! Just moved from NH to PA this year, I lived in NH my whole life. How the hell did I never know about this company?