Hum when using a DC power supply (1 Viewer)

[Chad Sunderland]

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

 

[Wayne A. Pflughaupt]

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.

Regards,
Wayne A. Pflughaupt