pro-rabbit 5,000+ posts
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The cone offers better overall sound (for what most wants) that is the bigger impact of the cone over looks. The Gcon would get my vote though.yeah I'm not as picky with her setup she just likes bump and I like it to sound clean so I want something I can tolerate when I have to drive or ride in her vehicle. The gcon seems to be priced pretty well also I am just a huge fan of the eclipse ti in sound I am not caught up in appearances although it doesn't hurt to have a nice looking sub either there is an eclipse ti on ebay but he wants way to much for it. also do you have any pointers on figuring up airspace in an oddly shaped fiberglass enclosure?
As for air space there are several ways to go about it. Depending on how the enclosure is setup you can do basic math for a square enclosure and subtract the area that is "not there", but that is more guess work then anything. When we do glass work here for SQ installs we fill it with a liquid and convert the numbers to ft3. It takes some time, but it is about 98% accurate in most cases.