why is this so important whats funny is ask roo or bob how they do it they dont lol they build around it and just tune the port with the TL this is how they thought me that its they best way of getting ever tenth out of the box no need to find the resonant frequency of a vehicle if you know what your doing.
Actually you need to simulate in computers like this to get a good SPL //content.invisioncic.com/y282845/emoticons/fyi.gif.9f1f679348da7204ce960cfc74bca8e0.gif