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Subwoofer Connection: Speaker wire to Mono RCA

I have a subwoofer whose only output is speaker wire and a brand new Sony STR-DG710 receiver whose subwoofer output is a mono RCA jack.

Is it possible to hook up my Sub to this Receiver? Is there any sort of adapter I can purchase to go from speaker wire to mono RCA or am I going to need to purchase a new sub with a mono RCA output?

Link to Sonys page for STR-DG710
http://www.sonystyle.com/webapp/wcs/stores/servlet/ProductDisplay?catalogId=10551&storeId=10151&langId=-1&productId=8198552921665061595

Link to Panasonics page for my Home Theater System. I'm using the speakers and sub from this unit.
http://www2.panasonic.com/consumer-electronics/support/Video/DVD-Recorders-Players/DVD-Home-Theater-Systems/model.SC-HT743.S


I appreciate any help you guys here can provide. Oh, and if it turns out I do need a new sub any recommendations for a decent quality but inexpensive one?

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  • 8 more comments 
  • RykIII Oct 31, 2007

    I'm sorry. I meant my subwoofers only INPUT is speaker wire.

  • thehoox Dec 20, 2007

    How do I connect a sub-woofer/amp to a receiver that has no sub-woofer output?

  • jack697 Feb 09, 2008

    i dont no how to connect the subwoofer with all the speakers so that only bass comes out? i get both and i dont no wht to do?

  • Anonymous Apr 16, 2008

    My new Yamaha Reciever has 1 output for the Yamaha Sub that has 2 inputs black or red, which one can I use, if either..

    Thank You, Don

  • sreif1825 Jun 22, 2008

    I have the same problem....any help here?

  • avamar23 Jul 21, 2008

    I also have a problem with my subwoofer. I do not know how to connect my sub to my receiver (Harman Kardon). It is a power sub but only has speaker output and volume knob in it. My receiver has a mono preout for subwoofer. How can I possibly use the sub as a LFE in my hometheater viewing?
    Your help would be much appreciated.

    Roger

  • jayson_1173 Aug 10, 2008

    How can I connect my Sony str-da3200es receiver to my subwoofer? the sony has only one subwoofer rca output but my subwoofer has 2 line input (L-R). thanks...

  • Lola BigC Nov 12, 2008

    I have the same problem - my new receiver has just the RCA jack but my subwoofer only has +/- speaker wire inputs. Are we sure that there is no such wire that would have an RCA jack at 1 end and speaker wire input on the other?

  • sfrantz1 Mar 19, 2009

    I have an old receiver with no sub pre-out and a new sub with a single pre-out. Can I add the new sub to the old receiver? Receiver has two fronts, 1 rear and two center speaker connectors.

  • Efrem Dec 12, 2013

    It's impossible to conect them , because on the receiver You have signal output and the subwoofer need voltage input.You need receiver with output for passive subwoofer or extra amplifier for the subwoofer

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The easiest solution to use your subwoofer is to buy an amp for it. Any old stereo receiver from a garage sale will probably do just fine.

  1. Connect the mono RCA subwoofer output from your Sony with a 1xRCA-to-2xRCA splitter to both the left and right input of the cheap reciever's tape or aux input
  2. connect both speaker outputs of the cheap reciever to the speaker input on your subwoofer. make sure both black (-) outputs on the reciever connect to the black input on the sub, and the red outputs (+) on the reciever are both connected to the red input on the subwoofer.
  3. make sure the cheap receiver's volume is all the way down. turn your Sony up to about the loudest you'll listen to it. turn up the subwoofer amp until it's loud enough to sound good.
  4. leave the subwoofer amp alone, the Sony volume will all you ever need to touch from now on.

You can even now turn off your subwoofer / adjust the volume easily now!

Posted on Nov 11, 2007

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My av receiver didnot have preout for surround spkr.I want to add extra amplifer to my surround spkr.Can any one suggest what to do or can i directly connect spkr wire to amplifer.

Posted on Mar 17, 2008

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Posted on Jan 02, 2017

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