Question about Onkyo TX-SR875 Receiver

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Subwoofer hookup I just purchased a new OnkyoTX-SR875 receiver (with an RCA subwoofer output) and a new powered subwoofer. My previous receiver had regular speaker wire outputs for the subwoofer and I had therefore previously installed high quality 12 guage speaker wire through the walls (about 50 feet) to the location where I want my subwoofer. Can I just wire an RCA connector to the existing in-wall speaker wire to my powered subwoofer or will the sound quality suffer as compared the same length of standard shielded RCA cable.

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  • cav212 Dec 30, 2008

    I have the same receiver. However, my problem differs in the actual conection of the subwoofer to the receiver. I have a Bose subwoofer which uses an imput cord with prongs in it, and my receiver uses a RCA subwoofer output. How can I connect these pieces od equipment? Is there an adapter?

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Hi silverfox55

You probably wont experience any sound quality losses, however, you may pick up mains hum that will be noticeable at low levels, and also prevent you sub from auto turning off. It will also be suseptible to RF interference, such as that from taxi and police radios,and mobile phones. Try it first, you may find that it works ok. Your house may have foil building paper as insulation that will sheild the outside sources of Rf interference. The mobile phones however... If it doesnt work, I suggest you use the existing speaker cable to pull through for a run of decent audio coax. This way you will not end up with any unwanted signal getting into your sub.

I am more than happy to answer any other questions you may have about it, just give me a hoy :) If you are still unsure, or have problems, before you give a rating for this advice, please get back to me and we can try some more things.
Thanks for using FixYa, If you consider the advice I have given you as sound, a FixYa rating is a great reward for my efforts to help you. Cheers.

regards
robotek

Posted on Jun 03, 2008

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