To learn more about acoustics, go on line and get Jay
Perdue's books on acoustics. They are short, sweet, and to the
point, and very inexpensive. One is about Church Acoustics
and the other is about educational acoustics, but they both
speak to acoustics in general and will shed light on any
acoustical situation.
One box treats a home theatre or recording studio with a 14' X
20' room. Two boxes treats a room that would be large enough
to seat 25 people, three boxes for a room large enough to seat
50 people, four boxes to treat a room that would seat 100
people, and one box per 50 people after that. Remeber it's
about how many the seating capacity would be not how many
are actually in the room at the time. For more, on this see the
installation and instruction page.
A box contains 8 specially built 2' X 4' x 1" acoustial absorbers,
8 patented "Black Hole Acoustics"tm Mounting Systems, all
necessary mounting hardware, mounting instructions and
placement suggestions for only $840.00 or we will sell a 4
panel box of acoustical absorbers for $545.00
2" thick absorbers can be purchased for extra low end
absorption as well as 25% more overall absorption for
$585.00.