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Get the best from your system while listening without any cost



Turn off your solar systems inverter while seriously listening, as it puts very high frequency s***t back into your house mains wires, as does your microwave and anything with a smp (switch mode power supply) which ends up in your system, I’ve seen it on the oscilloscope.
And if the missus want to cook with the microwave, tell her to get take out delivered

Simple way to test if you don’t have a oscilloscope, is get a portable AM radio that does not mute if "off station", and tune down to around 700khz on AM and turn up the volume and go near any smp power supply and listen to it squeal it’s head off, this noise is getting injected into you home mains wiring and your system..

Cheers George
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georgehifi OP
10,312 posts
 

sevestan
Just turn off all your breakers except for audio and then listen...DUH
This exactly what I do when I want to listen seriously and the missus is out, takes a few seconds, but many here don’t have dedicated audio lines to do that with.

I do run all my system components through power conditions/filters for protection from transient spikes. No hums, no electrical noise at all.
I have not yet seen a good power conditioner/filter that doesn’t detract from explosive transients compared to when a power/amp is plugged direct into mains, but they are great for source equipment. I use my own using isolation transformers and expensive Siemens large block filtering brick sized cans that are used in medical theater equipment, one for each source piece, that way they have some isolation from each other as well. 

Cheers George
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limomangus
1,190 posts
 
Well this was different, so everything that runs on electric in your home give out interference when its plugged in the wall outlet and the only way is to shut down the power in your home except for the power running to your system...interesting. So then I won't need thousands of dollars in cables for my system.Or then again I do....hmmmmmm .I live in a complex and my town house has a neighbor to my left and one in the rear connected units......so I guess I never will have silent sound. 
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georgehifi OP
10,312 posts
 
so everything that runs on electric in your home give out interference when its plugged in the wall out


Mainly products like solar inverters and SMP supplies (Switch Mode Power supplies), go back a few years and we didn’t have these SMP’s or Solar Inverters in the house, and back then things seem to be far more consistent in sound from day to day.
Today your system sounds great, tomorrow not so good? you put it down to yourself not being "in the mood", but you "were" otherwise you wouldn’t have turned it on.

Cheers George
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