A good website to learn about DBR (DCAAV) bass reflex box?

Ron E

Member
2002-06-27 10:41 pm
USA, MN
simon5 said:
DCAAV.... I would like to learn more about this box and the advantages over a standard ported box.

Do a search for DCAAV. You wil find a spanish page - that google will translate for you - that has an analysis with graphs. The second diaphragm null causes a zero (notch) in the response in the passband. It is quite possible that with an adequate damping strategy, this could be minimized, but you see they found little difference from a standard vented alignment in extension - at least for their one test case.