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<blockquote data-quote="svtcontour" data-source="post: 7616626" data-attributes="member: 638841">I ran stereo subs (Vifa M26WR09 10&quot;) along with my Usher S520 bookshelf speakers. Crossed them over just where the ushers started to drop off. It blended real nice. I used an Audiocontrol PCA (Phase Coupled Activator) as the crossover. I didnt actually cross the bookshelf speakers over. I let them run full range. Just blended the subs in to match. It was great.&nbsp; Subs went down flat to 23Hz with -6db at 18Hz or so. This is inroom response of course - probably helped by room gain.I just built some two way towers with an 8&quot; driver and 1&quot; tweeter that go just low enough that I dont feel I need a sub which is why I&#039;m not running that setup anymore. New speakers are flat in room to 30Hz with -6db at around 25Hz.This was the old setup:<img src="http://powerthings.com/pics/newsubs_finished.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" />This is now:<img src="http://powerthings.com/pics/stereo.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></blockquote>

[QUOTE="svtcontour, post: 7616626, member: 638841"] I ran stereo subs (Vifa M26WR09 10") along with my Usher S520 bookshelf speakers. Crossed them over just where the ushers started to drop off. It blended real nice. I used an Audiocontrol PCA (Phase Coupled Activator) as the crossover. I didnt actually cross the bookshelf speakers over. I let them run full range. Just blended the subs in to match. It was great. Subs went down flat to 23Hz with -6db at 18Hz or so. This is inroom response of course - probably helped by room gain. I just built some two way towers with an 8" driver and 1" tweeter that go just low enough that I dont feel I need a sub which is why I'm not running that setup anymore. New speakers are flat in room to 30Hz with -6db at around 25Hz. This was the old setup: [IMG]http://powerthings.com/pics/newsubs_finished.jpg[/IMG] This is now: [IMG]http://powerthings.com/pics/stereo.jpg[/IMG] [/QUOTE]

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