Klipsch RW-12D - Silly noob question - AVS Forum
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post #1 of 11 Old 11-27-2012, 02:35 PM - Thread Starter
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Hi guys,

My AVR has a single RCA jack for the subwoofer, while the subwoofer has L and R channel RCA jacks. I went ahead and bought a splitter, but have noticed that it looks like the setup figure in the instructions seems to indicate to use a single M-M RCA cord to connect the AVR to just one (can't remember from memory which one in particular) of the channels on the subwoofer. What is the best way to make the connection?

Thanks.
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post #2 of 11 Old 11-27-2012, 02:37 PM
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The owner's manual (third page, IIRC) says you can connect to L, R or both:
Quote:
RW-10d / RW-12d / RSW-10d
“LINE IN” - ... Connect to the “RIGHT” and/or “LEFT/LFE” inputs on the subwoofer’s rear panel ...
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post #3 of 11 Old 11-27-2012, 02:42 PM
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By using the Y splitter, you are gaining about 3db in extra output. That's all. Either way is fine. The Y-splitter shouldn't effect sound quality either.
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post #4 of 11 Old 11-27-2012, 02:47 PM
 
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You should check with Klipsch customer service as they told me when asking other questions to hook up to either RCA jack but not to both as running the sub hot, causes problems that can burn things out.
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post #5 of 11 Old 11-27-2012, 02:49 PM - Thread Starter
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Ok great. I'll go ahead and use the Y-splitter. Thanks guys.

Eljaycanuck, interestingly enough, that critical sentence was missing from my Manual. Or perhaps I missed it. Who knows.
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post #6 of 11 Old 11-27-2012, 02:50 PM - Thread Starter
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Quote:
Originally Posted by BeeMan458 View Post

You should check with Klipsch customer service as they told me when asking other questions to hook up to either RCA jack but not to both as running the sub hot, causes problems that can burn things out.

That's very odd. Why would they include both jacks then? As an aside, I hooked up my dad's RW-10d about 2 years ago with a Y splitter and it seems to be working just fine.
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post #7 of 11 Old 11-27-2012, 02:52 PM
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Quote:
Originally Posted by hermeslyre View Post

By using the Y splitter, you are gaining about 3db in extra output. That's all. Either way is fine. The Y-splitter shouldn't effect sound quality either.
Just to clarify, you don't get more "output", you get more input signal. The sub will sum the 2 inputs and you'll 3 dB more input signal. This will change the output at any given gain control setting. However, the maximum output of the sub will be unchanged.

One other benefit is that it takes less signal to activate the Auto-On feature.

Craig

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post #8 of 11 Old 11-27-2012, 02:57 PM
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Quote:
Originally Posted by BeeMan458 View Post

You should check with Klipsch customer service as they told me when asking other questions to hook up to either RCA jack but not to both as running the sub hot, causes problems that can burn things out.

Quote:
Originally Posted by 123 View Post

That's very odd. Why would they include both jacks then? As an aside, I hooked up my dad's RW-10d about 2 years ago with a Y splitter and it seems to be working just fine.

Klipsch CS was wrong. It won't hurt anything. Just be sure the subwoofer trim setting in the receiver is 0 or a negative number and you'll be fine.

Craig

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post #9 of 11 Old 11-27-2012, 02:57 PM
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Quote:
Originally Posted by craig john View Post

Just to clarify, you don't get more "output", you get more input signal. The sub will sum the 2 inputs and you'll 3 dB more input signal. This will change the output at any given gain control setting. However, the maximum output of the sub will be unchanged.
One other benefit is that it takes less signal to activate the Auto-On feature.
Craig

I knew it simply increased input voltage, but didn't actually know the rest. You've refined my knowledge banks, good sir.
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post #10 of 11 Old 11-27-2012, 02:58 PM
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Originally Posted by hermeslyre View Post

I knew it simply increased input voltage, but didn't actually know the rest. You've refined my knowledge banks, good sir.
Happy to help, my friend. smile.gif

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post #11 of 11 Old 11-27-2012, 03:00 PM
 
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Quote:
Originally Posted by 123 View Post

That's very odd. Why would they include both jacks then? As an aside, I hooked up my dad's RW-10d about 2 years ago with a Y splitter and it seems to be working just fine.

I can't say the why of anything as that's the warning they gave me and why I suggest giving customer service a call. It never hurts to call and check but it can hurt to not call and not check. Just sharing as it's no biggie to pick up the phone and give customer service a call. It could be that it's just for my sub and no other sub as our Klipsch subs (SW12-II's) are some eighteen years old and this warning is only valid for our subs.

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