Plugging a Sub W/no Speaker Inputs into a Receiver W/no Sub Output

Discussion in 'Hardware Lounge' started by Jack Keck, Aug 19, 2017.

  1. Jack Keck

    Jack Keck Member

    I built a sub for my home theater. The amp I used is similar to this one "Dayton Audio SPA500 500W Subwoofer Plate Amplifier" from! . As you can see, it does not have speaker inputs. My ht receiver died. I decided not to replace it and got a sound bar instead. I would like to use this sub with my Marantz Twenty-six receiver, which has no sub output and only one set of speaker outputs.

    I am open to and would be grateful for any suggestions.
  2. Andrew Pratt

    Andrew Pratt Well-Known Member Top Poster

    It sounds like you'll need to convert the speaker level outputs into a line level that the sub will accept. There are lots of options to do that just be careful that you aren't sending more power than they're rated for.

    Russound ADP-1.2 Speaker-level to Line-level Adapter
  3. DYohn

    DYohn Well-Known Member Donor

    That receiver has a tape out, yes? Use that.
  4. Jack Keck

    Jack Keck Member

    Sounds like a plan.

    Thanks again.
  5. Jack Keck

    Jack Keck Member

    As it turns out, I had the necessary adapter to allow me to plug the sub into the tape monitor. Then I put on St. Saens' Organ Symphony. It shook things up very nicely, thank you.
    DYohn likes this.

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