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Date: September 24, 2014 at 20:21:38
From: norman bates, []
Subject: Re: Low Qes

The PRV Audio 18SW2200 18" Subwoofer has a friendlier qts............ Looks reasonable for the box size combined with extension and xmax.

The .391 would make for a 4th order F3/tuning around 33hz but need a bigger box (around 200L or 7ft3). You can tune lower, I'm tuning to the F9 of 27hz in my ported. Sub in a corner and placement on a slab of concrete, I'm pretty happy with it.

The other driver has a qts of .241, I'd say unusable except for a bass horn, and that'd be too huge unless in a building.

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