|
Audio Asylum Thread Printer Get a view of an entire thread on one page |
For Sale Ads |
63.142.209.123
In Reply to: RE: please teach me... posted by cloudwalker on September 14, 2016 at 14:50:15
I have tried to learn with an open mind. I really have, but this common sense thing keeps getting in the way. I do not want to argue…we are here to help each other, right? You almost had me with the noise stuff. I live about 3 miles from a hydroelectric dam. In a very quiet neighborhood. The only physical noise in my house is an aquarium (which I try to keep filled to eliminate noise, a refrigerator, and occasionally the furnace. There are no motors on the same circuit. When I turn my amp on (with no input), there is absolutely no noise at all. My power is delivered underground and I am the only home on this transformer. I have no antenna hooked up to my system. I do have my computer hooked up to my amp however. I believe the guys designing our audio equipment understand our problems well and try to eliminate "noise". I ask you, what is the "perfect" power source? A generator? DC power? Filtered AC power?
Follow Ups:
You are right, and I'm not being sarcastic. Some do go looking for problems weather real or imagined.
You tell us you have no issue with noise so there is no reason to attempt to address it. Just in case.....Awedeophile has mentioned some simple ways to detect noise. My preferred method is to use an oscilloscope to see what is imposed on the line frequency. In the end as long as you are happy....
If I detect "noise", either with an AM radio or an oscilloscope, I am guessing that would be radio signals that cause "noise"? Would that be a problem if I don't listen to radio broadcasts or have an antenna hooked up? When I built this house, I ran a coax antenna to each bedroom and was careful not to run them near an AC line. Do you think that would help the signal?
"I am guessing that would be radio signals that cause "noise"?"
Not necessarily. There are many sources and differing types of "noise" Notably RF which is radio frequencies picked up from radio signals, cell phones, wireless devices to name a few.
Then EMF which is noise picked up from your electrical system in the house. Dimmer switches and fluorescent lighting are big polluters. The motors in your a/c and fridge can contribute.
"Would that be a problem if I don't listen to radio broadcasts or have an antenna hooked up?" Possibly, see above. If the antennae is connected to a tuner there is probably rejection circuitry built in.
"Do you think that would help the signal?"
Absolutely, separation and isolation are the prime means to keeping noise off signal lines. Your approach on installation is the first step.
My big thing is to know what you are dealing with before you start chasing ghosts.
I have worked 30 years in industrial instrumentation. I have chased and at times mitigated these problems. If you think spending money to cure something that may or may not be there and it makes you satisfied there is a positive result then ok, your good.
Are you trying to say that filtering high frequency ac "noise" does no good to improve sound quality? A very easy thing to do would be to wire up an X type safety cap to a plug and plug it in near your stereo gear. Across from white to black. Neutral to hot. They come up to 10uf. If you can't hear that then don't worry about it. Look to some other universe for a "perfect" power source. T456
I think that filtering High frequency AC noise is probable an easy and good thing to do. I would guess that living in a rural area is probably good too. Living in the LA area is probably hard to get rid of noise... glad I live where I do....
That cap thing is just one thing. A multi approach strategy is required. AC has problems no one approach can solve.
You need to forget the I live rural thing too. So do I. I used to say the same thing. I have no radio tower within 25 miles, no TV within 60. No cell service. There are about ten houses per square mile where I am and some are second homes with no power on except maybe the fridge. My power is noisy. Not as bad as a cul de sac in suburbia but bad and my improvements made a world of difference.
We can lose power a few days in winter here in the mountains. People learn not to leave food in and the things on as eventually they could have to throw the thing away. My neighbor just tripped a breaker and in a couple of weeks meat in the freezer forced them to replace their fridge.
ET
"If at first you don't succeed, keep on sucking till you do suck seed" - Curly Howard 1936
I just wanted to understand your reasoning better. To my knowledge, the power has never gone off here. Always looking for ways to improve my systems...
I didn't say you had problems to tweak. I said that EVERYONE will benefit from various improved methods of AC delivery. Then I mentioned what they are.The power not going off means nothing other than perhaps you have underground lines but you didn't say. It definitely has nothing the do with the actual quality of the AC or the noise contained within.
I was a dealer and felt power delivery improvements were a waste of money. That's because even though I could have borrowed any gear and cables and outlets we had I was too stupid and lazy to even try.
Once I did it was very eye opening. I now feel that between power cords, interconnects and speaker wire (upgraded) power cords yield the most benefit.
Remember the noise is in your house and fed to you in the AC. Its everywhere.
Your topic in entitled please teach me or am I blind?
ET
"If at first you don't succeed, keep on sucking till you do suck seed" - Curly Howard 1936
Edits: 09/16/16
The moderators feel that allowing this thread to continue, even though it may hold useful information, will wind up creating more trouble than it solves, and thereby detract from the purpose of this forum.This is not the appropriate venue for discussion of this matter, and we ask that those with an interest in the subject, take it elsewhere (e.g. private e-mail).
No further follow-ups will be considered.
Thank you for your support of the Asylum.
This post is made possible by the generous support of people like you and our sponsors: