Ex-Maxx |
03-23-2005 03:01 PM |
T/S parameters to an extent, yes... Resonant freq. and Qts will give you a good indication of a subs ability to control cone movement. A sub with a low Fs and Qts will likely have a "looser" suspension, where a sub with higher values will likely have stiffer suspension, and therefore better suited to larger enclosures, or even infinite baffle. But 4ft^3 seems huge for a single 12 to me for ported... A lot of subs I've worked with are usually looking for maybe a little over half of that, but I'm assuming you're into SPL, so usually bigger is better... In a box that big though I'd imagine the group delay would be horrible, and with that much internal volume there would definitely be less "spring" or back pressure from the port to help control cone movement. Throwing ther 15 in there probably solved your problem because it is able to sweep much more volume than the 12 to make use of all that air. That, and it's T/S parameters are probably a lot different... My $.02.
[ March 23, 2005, 04:02 PM: Message edited by: Ex-Maxx ]
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