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RE: SEXy substitute driver

Posted by Paul Joppa (P) on September 20, 2009 at 18:31:57

In Reply to: SEXy substitute driver posted by johnvb on September 20, 2009 at 16:24:51:

Looks more or less OK; resonance will be a bit lower - I calculate 112Hz - just adjust the sub crossover. Q will be on the high side as well, so watch out for a slight bass bump around the resonance and fiddle with room position to tame it if necessary.

For what it's worth, it's my opinion that the FF165 is "good for near field" because it has a very tiny specified linear excursion, and it won't be turned up as high in the near field. You could reduce the Q (and resonance) with a larger box, but that would exacerbate the excursion limitations. Incidentally, it's easy to confuse excursion limitations with whizzer anomalies in subjective listening. (Yes, I learned this the hard way.) I advise experimenting and keeping as open a mind as you can. It's a lot of fun, and very educational!

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