multiple tuning frequencies

[colemanyoungerinalaska]

im building a ported box and i want it to have 2 tuning frequencies.
its for a 10 and so far ive decided to do 2 ports 3 inches wide and 13.5 long. which will give me close to 28 and 40 depending on if i use 1 or both ports. i was wondering if anyone knows if port noise is going to be much of a problem this way or if there is a better way to do this other. any suggestions would be greatly appreciated

[Bwcad1]

that wont work. unelss you block one of the ports. the best way to do multiple tunings is to use aero ports and just get 2 sets swap them out when you want.

[solacedagony]

I remember seeing a setup one guy on eCoustics did. He made his port removable with T nuts or something similar. That way, he could unscrew it and put a new one on depending if he was competing or daily driving.

[colemanyoungerinalaska]

i was planning on just blocking one but maybe ill just swap ports. are the ports off of parts express a good deal ive never bought them b4. any other sites i should check? i may get some instead of the cardboard tubes i was gonna use itll look much better and they are flared.

[JeremyC]

Yeah the price for aero ports on parts express is pretty good. Not as cheap as dealer pricing, but pretty darn hard to beat.

[cargodz]

Everybody musta forgot about my account with PSP for Aeroports... Check here for prices
http://www.caraudiocentral.net/forums/showthread.php?t=7613