ok.,.i got two rockford he10s.
running in a dual ported enclosure with a 280 watt mtx blue thunder amp.
ive been doing a little reading in car audio monthly..and in january 2002 had an article on different boxes ...says
"ported boxes suffer from one major drawback, the response of the speaker below the tuning frequency.may also cause serious damages to your speakers."
a) i contacted rockford and they recomend the ports being 13.25 inches in a 15 (bass of box)inche box. however my box has the ports shooting out of the top and in the manual they have it shooting out of the side. the currents length of the ports is ten inches ...leavin about 1.25 inches from the bottom of the port to the bottom of the box....is that enough to get a low bass sound without damaging the speaker...
b) if not should i cut them to a certain length.,....
c) what is a tuning frequency.??