2. tech-talk
  3. 162300-445

Noise Goblin

I moved into a 44 year home three years ago and it still had the original electrical box.  I had an electrician put the outlet I use for my audio system on a separate circuit.  Even still I was getting some noise through my speakers and when my wife was using the hair dryer in our bedroom upstairs I would get a buzz through my stereo amplifier.

Fast forward:  I just had a brand new electrical box installed with the latest grounding etc.  My audio system is on a separate circuit.  Low and behold this morning I started to hear the buzz through the stereo amplifier again.  I ran upstairs and my wife was using the hair dryer.  I am still getting a slight noise through my speakers. When I turn the volume up the noise gets louder.  

I don't understand how this is occurring.  Not sure what to do.  Are there any electricians or others who have had this same issue on this forum who might have an idea what is going on and how to correct this issue?
thankful

Showing 1 response by erik_squires

erik_squires
16,589 posts
 
Ahhhh.  Well, turntable preamps are very high gain devices.  That is, they'll amplify the signal, and the noise, much more than others. You could be picking up EMF, but that usually needs to be closer, or picking up AC noise which the other components reject well enough.

Try a Furman power strip with SMP and linear filtering (they make lots of models without these features) which may clean up the noise enough for you.
More to discover