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In Reply to: RE: please teach me... posted by cloudwalker on September 14, 2016 at 14:50:15
I think your advice would be accepted easier if you got to know each persons environment first. I have clean, stable, reliable power and live in a dead quiet area. In a new home. I really think my money is used best buying good equipment and connecting it correctly. Just my thinking...
Follow Ups:
Factory that uses E.P. power conditioners pictured above.
Thinking is no substitute for experience. But if you want some scientific papers on power conditioning, Environmental Potentials has a number of "white papers". Their power conditioners are used in industrial applications, and they got noticed by audiophiles at some point. Incidentally, their power conditioners are very good and produce easily audible results. Also incidentally: you need good equipment to hear the difference.
You guys are wasting your time. From his own system page "I am a retired electrician and I believe electricity is electricity". He didn't come here to be taught, he came here to troll. Check his posting history. This is a repeating behavior pattern with him.
you are right that I had my doubts, but I wanted to learn if there was something else I could do to improve what I had. I started this with a completely open mind...
Yeah, electricity is electricity = completely opened mind, right.
you guys are too picky. I really was trying to learn something new
Just some food for thought. The power supplies in your audio equipment, depending on their design, can be a significant source of noise. Especially big SS amps with large capacitor input power supplies. High current spikes hitting the power transformer 120 times/second cause ringing (vote in favor of choke input supplies). These spikes have harmonics many times the 120Hz fundamental producing noise up to RF frequencies. Unless the transformer's secondary is snubbed, most manufacturers don't, this transformer ringing will also add to the noise. This can not only pollute the circuits connected to the supply but also exit the gear via the power cord and radiate this "trash" to other gear.
Home AC mains are single ended. One line is grounded. This makes the power cords dangling from your gear antennas for noise (see above). One use of an isolation transformer is to rebalance your line. Feeding your gear balanced AC as opposed to single ended, noise picked up by the power cords will be common mode which will mostly be rejected by the power transformers in your system. Big recording studios use balanced power for a reason.
"It is better to remain silent and thought a fool, then speak and remove all doubt." A. Lincoln
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Why is he asking "please teach me" then arguing if he doesn't like the replies when they are true?
ET
"If at first you don't succeed, keep on sucking till you do suck seed" - Curly Howard 1936
I was just trying to summarize everything.
None of the reasons you mention prove a thing. In fact a more modern home is likely to have more noise producing things like washer dryer with digital controls. My new front loaders suck in that they produce tons of noise. Digital controllers for high RPM motors.
So you are barking up the wrong tree. Time for a ten dollar noise sniffer. An AM battery radio set to 600. Do you have whole house controls and stuff? The modern smart home isnt in my opinion.Put the radio next to wall warts that charge phones and laptops and you'll get the rude awakening. TVs are pathetic. My plasma will wipe out the whole AM band up to about 25 feet away. Turn these things off and on and see.
If it was 1960 the power grid would be much cleaner.
ET
"If at first you don't succeed, keep on sucking till you do suck seed" - Curly Howard 1936
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