Help wiring an in-wall sub. - AVS Forum
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post #1 of 10 Old 10-17-2008, 06:11 PM - Thread Starter
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Help wiring for an in-wall sub. Can I use the speakers B output to wire an in-wall passive sub? The receiver I am using has the 7.1 speaker outputs, and an LFE which the in wall sub does not have. What is the best way to wire the in wall sub? I have the diagrams from the manufacture how to wire the at the sub woofer but it does not tell me where to wire to at the AV receiver.

Thanks!
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post #2 of 10 Old 10-17-2008, 07:16 PM
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What's the make and model of the sub?
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post #3 of 10 Old 10-17-2008, 07:31 PM
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Connect the LFE output of the receiver to an external amp using a shielded RCA cable. Then connect the external amp to the subwoofer via speaker cable. If you are running the speaker cable inside the wall, make sure it is CL3 rated.

What sized amp are you looking to use? In the DIY section, we have discussed sub amps ranging from 50w to 4,000w.

-Robert
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post #4 of 10 Old 10-18-2008, 03:05 AM
 
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And the link to the manufacture where’s the link so we can see the diagram.
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post #5 of 10 Old 10-18-2008, 08:48 AM
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get an ep2500 500wx2 rms for $300. Plenty of power for any subs and connect it to your lfe on the back of the reciever. That should rattle your roof or walls.
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post #6 of 10 Old 10-20-2008, 09:46 AM - Thread Starter
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Thanks guys! Does the amp need to be a "subwoofer amp" or will a standard amp with and LFE input to the job.

I'm helping my neighbor with his system in his converted garage and he is using pretty low end equipment and speakers so cost is an issue.

Thanks!
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post #7 of 10 Old 10-20-2008, 09:58 AM - Thread Starter
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Is there any reason I could not use a dayton SA amp and just not mount it to anything or just bolt it to the inside of my AV cabinet - run the LFE from my AV receiver to the dayton amp then run the speaker wire to the passive sub?

http://www.daytonaudio.com/loudspeaker/amp_sa.html
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post #8 of 10 Old 10-20-2008, 10:32 AM - Thread Starter
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...or could I use an Audio Source - 160W Bridgeable 2-Channel Home Theater Amplifier to "power" the passive sub?
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post #9 of 10 Old 10-21-2008, 01:16 AM
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Yes, to all questions......But, I would go with the second option....
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post #10 of 10 Old 10-28-2008, 10:56 AM - Thread Starter
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Thanks so much for your insight.
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