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subwoofer setup problem

I am trying to mate an ACI Titan II with my Thiel 22. The Thiels go down to 30 hz but the lowest crossover on the Titan is 35hz. Thus, there is an annoying overlap in frequency. I am considering several possible options and would appreciate some input. They are (1) get a REL sub whose lowest crossover point is 28 hz. (2) get an active crossover and cross my mains at a higher point. (3) use a passive 65hz filter between my preamp and amp that ACI has.
The passive filter is the cheapest route but will it do more harm (to the sound of my thiels) than good?

Thanks
Greg
kadlec

Showing 1 response by leoturetsky

leoturetsky
103 posts
 
Kadlec, does your preamp have a subwoofer output? Then you wouldn't need to spend any money on crossovers. You couldn't run the Thiels in full range of course. I would go this route before I chose (2) or (3).

Karls, I though Thiels were rolled at 6db? I don't actually know what the difference is (in technical terms) but it's the assumption I've been going under when reading other threads about roll off. I have Thiel 1.5s but I'm pretty sure Jim Thiel designs all his speakers very similarly.
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