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miked909
12-21-2003, 07:50 PM
I built myself a nice little ported box for my infinity kappa perfect 10.1d thinking it would be nice and peachy when it was done. I built it to the right volume and port diameter/length but i'm getting some nasty cancellation. I put the port on top of the box and its just about 3" (or more) from the sub and walls. I tried turning the box every which direction in my car with the port and speaker not facing down. No luck. Can I do anything like lengthen the port to help cancellation issues or am I stuck with the problem of having to build another box? It sounds like utter crap having only 35-40hz notes and the rest just completely gone.

startzy
12-21-2003, 10:25 PM
how long is your port and how big around is it?????

miked909
12-22-2003, 03:39 PM
10.4" long, 3" diameter as called by the ported box specs

MacLeod
12-23-2003, 10:22 PM
Thats why I shy away from ported boxes and especially bandpass boxes. If done right they rock, if off by a little theyre crap. You may just want to consider it carpentry practice and build yourself a nice sealed box.