pro-rabbit
5,000+ posts
Moderator
I actually use a single 8" sealed to check various firing positions and frequency. Then play around with a few ported options then move on from there. //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gifWhen making a burp box do not tune. What you do if you have access to a TL get some aeroports and meter yourself at a moderate to low level. Keep shortening/lengthening until you find the sweet spot in your car. Its extremely tedious but it makes for a better score. Burpers don't tune they do that.
If you ever want to get a "dealer price" of sorts and at pricing that are marketable I would be willing to use em as upgrade options for clients.thanks for the mention
actually i can make them any size 3-48" diameter lol
and yea they are adjustable in length if you choose to go that route
this is the ultimate spl testers dream port be sure to check the video out
aeroports pictures by psychoacoustics - Photobucket