Is any equipment new? I had some static issues with my new equipment for a month or two. It finally went away.
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My monoblocks are 3 prong grounded plugs, preamp is two prong ungrounded, as is DVD player, cable box, TV. It is a static noise, not a ground loop low freq hum. Bad op amp? Preamp going bad, it is an old unit from the early 90's. I will be getting the sanders sound preamp in a few weeks, I'm praying it is the preamp.
All plugged now into a furman pl-plus C conditioner.
I had my other odyssey monoblocks hooked up to same upstairs set up, and sound Was still audible. Moved B&K pre upstairs, same noise. Basement setup now has odyssey amps , B&K pre, no noise, only sometimes. Maybe I'll check to see if the furnace is on, when I hear the noise. I'm at a loss as to what it is, I'm hoping it's the preamp, needs to be retired anyway.
I leave the power off on the preamp when plugging in the cord to furman. I have had the power off, on, tried a different outlet, tried a different outlet with another power strip/surge protect, to no avail once the onkyo plugs in the ticking/static, similar to a light snare drum tapping the skin, driving me nuts.
I also think some of the hdmi may be causing it, but on a much less noticeable scale. When I unplug some of the hdmi cords from the back of the tv, it changes sounds in a very small way yet again. SON OF A..........
I'm out of my head.
I plug amps into wall outlet, can't hear anything at all.
I plug in preamp, and there's the static. Possibly preamp, but maybe my hdmi's cables are touching my rca's from amp to preamp. I rerouted every able , all power cables e together in a foam long tube. Same sound. I hope when the new pre comes, I don't have any of this static, I'll .
I unplugged every very component one at a time, and when the preamp is plugged in, I get static, BUT....... when I turn the preamp on,. The static goes almost away, the volume of the static is cut in half,.....wtf is going on ??????