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cork1958
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Joined: 02 Dec 2008
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Location: Michigan
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 Posted: Sat Jan 17, 2009 10:25 am Post subject: [Solved] Hooking up subwoofer |
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What, if any difference/benefit would I get from hooking up speakers A+B to back of subwoofer and wire sub directly to amp with the supplied single line cord to subwoofer outlet on amp?
Thank you
Last edited by cork1958 on Sun Jan 18, 2009 8:31 am; edited 1 time in total |
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TheGunslinger
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| Posted: Sat Jan 17, 2009 10:54 am Post subject: Re: Hooking up subwoofer |
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| cork1958 wrote: | What, if any difference/benefit would I get from hooking up speakers A+B to back of subwoofer and wire sub directly to amp with the supplied single line cord to subwoofer outlet on amp?
Thank you |
Yeah
I'm not completely clear on what you are asking; but the output to a sub-woofer is often cut off around 500hz while the signal might cut off for satrad around 10Khz.
The end result would amplify only a portionof the entire signal, and would probably blow up your speaker amp from the mismatch of impedances.
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daver40
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| Posted: Sat Jan 17, 2009 11:32 am Post subject: Re: Hooking up subwoofer |
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| cork1958 wrote: | What, if any difference/benefit would I get from hooking up speakers A+B to back of subwoofer and wire sub directly to amp with the supplied single line cord to subwoofer outlet on amp?
Thank you |
I can't think of any benefit, and I can think of several potential problems, if I understand what you are asking.
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theosus
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| Posted: Sat Jan 17, 2009 5:19 pm Post subject: |
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I think I understand what you are asking... My amp/stereo has a switched outlet on the back too... but it will only pass through about 250 watts... (2 amps of 120vac). Your sub may pull more than your outlet, so check it out. THe nice thing is - when the stereo is off, so is the sub.
My sub has two methods of operation - the first is a "pass through" where I can run the wires from the amp to it, then on to the speakers (it has "in" and "out" marked). That way, it takes power from the amp to run the sub. Its volume is also dependant on the volume of the other speakers, as all the power comes through the amp.
The second - which I tried beofre and didnt like - involved running a "line in" from the amp to the sub. It has its own power supply, and volume control. It didnt take any of the amps power - but I was always having to fiddle with the volume. Which sucks because its in the corner behind the TV (its a big thing, maybe a 20" cube).
I should put some foam and fabric on it, and make it an ottoman. |
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JeffyPooh
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| Posted: Sat Jan 17, 2009 8:37 pm Post subject: |
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Here is my theory of the original question...
Many subwoofers can accept either 1) a single low level input via a standard RCA patch cable from the receiver's subwoofer output, or 2) they can be wired up in parallel to the L+R front speakers.
Option 1 is the obvious choice. It doesn't depend upon the amplifier's low end frequency response (I'm referring to the amplifier within the receiver). And it's much simpler to wire up.
The only reason you'd ever use option 2 is in case your old "stereo" predates subwoofers and lacks a suitable output.
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cork1958
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Location: Michigan
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| Posted: Sun Jan 18, 2009 8:30 am Post subject: |
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Ha! Ha!!
I knew I worded that pretty funky, but you all pretty much figured out what I was asking.
I do have it wired with A+B speakers going to receiver/amp and sub just using patch cord to sub outlet on same.
Thanks |
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