Posted by David Morehouse [ 71.7.188.15 ] on April 25, 2008 at 09:09:29:

my delta 12lf's are in 3.5 cu.ft. boxes,with 2-4in. ports 6.25 in. each in length. 40-45 hz. These are no where near the port size Wayne uses. Why such a large difference? Should I retune?

Replies:

• Helmholtz formula - Wayne Parham 12:36:37 04/25/08 (0)