2. amps-preamps
  3. 1266784873

Ground source hum

I have isolated the source of my ground hum to be between my preamp and amp. This was through a process of trial and error and revealed quite surprisingly that for once Comcast was not to blame

I currently have a ground cheater plug attached to the pre-amp (bad). My pre is the Benchmark Pre-Dac ad my Amp is an ATI 6012. What are my options to permanently fix this problem. With the cheater plug in place there is absolutely no hint of hum what so ever.
Thanks
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Showing 1 response by ojgalli

ojgalli
165 posts
 
I assume this is too your Orions. I had a problem with hum also. You may have already done this, but since you've ruled out the cable, check your outlets for proper grounding. It's not uncommon, even in newer homes, for the wiring to be incorrect. Also, how far away is the ASP from the amp or other electronics? It is sensitive to EMI, you may need to keep it several feet away. I had both of these problems in my old home. After I moved the problem was the cable and the only fix was an isolation transformer on the cable.

BTW, love your version of the Orion—stunning!
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