Importance of Xlim versus Xmax??
I am considering using either the Selenium 15PW5 here from partsexpress or I found a Selenium 15PW6 at beachaudio dot com. http://www.beachaudio.com/Selenium/15pw6-p-302706.html
Both companies offer free shipping, have good reviews, and both woofers are about 98 dollars.
Here are the specs for the 15pw6
I modeled both in WinISD and they both yield a good response in a 4cubic foot ported box at 40 hz.
The major difference I see is that the pw6 has 2x the Xlim... I assume from the bigger moter and extended pole piece for more power handling.
Interestingly the specs suggest the frequency response of the 15pw6 doesn't go very low....but winisd doesn't show that.
the 15pw5 gives a smoother response, especially the smaller dip around 400hz. These will be run from 500hz down.
For the price I can't find any other woofers that come close to the performance. The kappa 15 LF might be the next comparable woofer, but is noticeably more expensive
I am using these for a 3 way with dual 15's per cab, for use with a 30hz cut.
Any thoughts on the importance in the specs? Any other suggestions?
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