Re: PI 7

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Posted by Wayne Parham [ 65.214.102.163 ] on February 06, 2007 at 17:07:49:

In Reply to: PI 7 posted by Zene on February 06, 2007 at 16:52:23:


The JBL 2241 in a 7ft3 cabinet tuned to 30Hz has f3 at 40Hz and f10 at 28Hz. The system is slightly underdamped, making room lift a nice natural conjugate, bringing up the bottom octave and giving solid output into the 20's.

If you are going to use these outdoors or in very large rooms, you might not want an overdamped curve, maybe prefering even slightly underdamped. If you increase cabinet size to say 10ft3 or 12ft3, maybe also increase tuning frequency to 35Hz, you'll increase output around 30Hz. I would only recommend this for outdoor use though, or for very large rooms. In a small to medium size room, the larger cabinet may sound a bit boomy.



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