Hum when using a DC power supply

Discussion in 'AV Receivers' started by Chad Sunderland, Oct 18, 2004.

  1. Chad Sunderland

    Chad Sunderland Stunt Coordinator

    Aug 22, 2002
    Likes Received:
    Hi, I just set up a super budget surround sound set-up in our new garage. Just something to give me some sound while I'm working on the cars...

    I have a Panasonic XR25 receiver, and for a sub, I used a DC power inverter, a JBL car amp, and a pair of Pioneer 12" subs in a car box.

    I realize this is a terrible set-up, but these were parts I had laying around the house.

    The problem is I get a constant hum and a slight tick through the subs. I'm guessing it has to do with using the DC power inverter.

    Any easy solutions to eliminate or reduce the hum?

    Thanks a lot
  2. Wayne A. Pflughaupt

    Aug 5, 1999
    Likes Received:
    Katy, TX
    Real Name:
    Nope. Those things are notorious for generating dirty power. For the money it would take to get a high-quality (read well-filtered) power supply, you could go to a pawn shop and pick up an old stereo receiver or something to power the sub. It’ll be way cheaper in the long run.

    Wayne A. Pflughaupt

Share This Page