2. speakers
  3. 1255213398

Speaker Hum on my Quad 12L Active's

I have a simple set up in my home office and up until recently things have been fine, but recently my Quad's have developed this hum. They hum when I'm not playing any music, plus I test them and they hum when the RCA cables are connected to the speakers, but not to anything else. Not sure what that means.

I usually play music from my computer wirelessly to my Airport Express and then go from there with RCA's to my active speakers. Any thoughts?

Also, I've checked around the forums for this topic and none of the previous questions seemed to fit my situation. Would appreciate any expertise here.
bdogsquad

Showing 2 responses by bdogsquad

bdogsquad OP
10 posts
 
When you say power cords, you're talking about the individual cords for the two speakers right? Currently, I have the Airport Express, the two speakers, a preamp and a turntable all plugged into a powerstrip in that's plugged into a wall socket across the room from where my computer is.
bdogsquad OP
10 posts
 
Ok. This all makes sense. I have wanted to go back to XLR cables and I might have to look into a DAC/ or Preamp at some point.

I wanted to also bring up the fact that I have a turntable in the mix and when I use go from the turntable to my phono preamp to the speakers, there is still a little bit of a hum, but not as much as when I go from the computer to airport express to the speakers. That make sense?

My thought is that it is most certainly the ground loop problem connected to the RCA cables since it happens with the turntable and with the computer. Does everyone agree with that?

Also, I don't have any dimmers in the office.
More to discover