+- Devialet Chat (https://devialetchat.com)
+-- Forum: Devialet Chat (https://devialetchat.com/Forum-Devialet-Chat)
+--- Forum: Devialet D-Premier, Expert 120/200/250, Expert 140/220/250 Pro (https://devialetchat.com/Forum-Devialet-D-Premier-Expert-120-200-250-Expert-140-220-250-Pro)
+--- Thread: Hum from Subwoofers after Dev 200 power off (/Thread-Hum-from-Subwoofers-after-Dev-200-power-off)
Hum from Subwoofers after Dev 200 power off - actx76092 - 09-Aug-2015
I finally got my subs hooked up and like the sound. But when I turn the power off, both subs hum quietly. If I disconnect from the Dev, the humming stops. I also have connected them to the Yamaha receiver I us for AV and there is no hum. . .
I have replaced the cables and it makes no difference.
Any ideas?
Hum from Subwoofers after Dev 200 power off - nkbg - 10-Aug-2015
+1 I have the same problem. Once the 200 powers off the hum goes away. Everything is on the same power block.
Sent from my iPhone using Tapatalk
RE: Hum from Subwoofers after Dev 200 power off - rwjr44 - 10-Aug-2015
"Ground Loop" https://en.wikipedia.org/wiki/Ground_loop_(electricity). This article is somewhat flawed but is good enough. You may have two units connected to different circuit breakers or something is connected to TV that uses a cable or the internet.
There are isolators that work well for this, if you can't fix the problem yourself.