Specialists > Audiologists
GROUNDING
rollo:
Why do some components come un-grounded ? Other than for safety is the ground affecting the sound ? Some manufactures tell ya do not ground while others say ground. Is it liability ?
Larry Smith liked digital grounded and all else grounded. Ken Stevens likes ALL un-grounded. There is a difference in sound both ways.
Nordost now makes a grounding device which confuses me. Dave , Pete, Folsom can you explain the advantage or disadvantage of such a device. Why is this separate grounding scheme affective ? I have also seen products from Acoustic Revive for grounding. What are they and what do they do ? Star grounding ?
charles
P.I.:
Opening a discussio on grounding is like talking about is there a God? of course there is, but is He a Big G or is she little g.
I'm juat gonna say IT at the outset to get the big controversy out into the open. Electrical gear works just great in a 2-wire H/N standard. It is stupid people that don't work well with a 2-wire standard.
The whole thing about electrical safety is getting polarity proper when feeding advice. We always want the Hot on the active side of the circuit and the Neutral on the return side. Problem is that for years plugs were produced in an unpolarized manner with equal width blades. I almost saw Jesus back in the mid 60's working in a music store that had badly wired AC and I put my hands on two air circulation fans that were reverse wired (or plugged). It is a bad feeling to know what is going on and not being able to let go. Thank God for my boss, Jim. Saved my life the night the HVAC went down in the store.
Here is a good intro to grounding. Grounding has been andwill always be a great sourde of comment and a myriad of approaches. I don't care. All I want is the system that sounds the best that will not kill me. This simplistic approach implies that I understand all of the ins and outs, + & - and repercussions of me suddenly waking up stupid one morning and killing myself because i didn't want Big Brother to dictate to me how I MUST lay out my audio circuits.
I roll 2 ways: 1 - a SERIOUS ground system with triple ground rods at the entry service and BIG (#8-ish) wire as a ground return back to the system.
The way that sounds best.: 2 - intelligent home runs for (1) analog (2) digital (3) other - ibn the system. Make sure everything is wired properly, including gear chassis grounds being real, etc... and then plugging all of the plugs in wide pin = Neutral. Systems just sound best this way. I don't mean to Poo-poo safety, but Americans survived without safety grounds for many years. It was the poor and unlucky few that died from standing voltage differences, etc back in the unpolarized plug days.
Oh, the reason some products come ungrounded is that risk evaluation has been done on that product and it was determined by an algorithm that death/renumeration was at a point to where the additional cost of materials, testing, etc outweighs the cost on one more wire... that probably would never come into play. It's about CYA to a point, indoctrination, lack of kowledge and convenience.
P.I.:
--- Quote from: P.I. on December 12, 2017, 05:49:47 PM ---Opening a discussion on grounding is like talking about is there a God? of course there is, but is He a Big G or is she a little g.
I'm just gonna say IT at the outset to get the big controversy out into the open. Electrical gear works just great in a 2-wire H/N standard. It is stupid people that don't work well with a 2-wire standard.
The whole thing about electrical safety is getting polarity proper when feeding advice. We always want the Hot on the active side of the circuit and the Neutral on the return side. Problem is that for years plugs were produced in an unpolarized manner with equal width blades. I almost saw Jesus back in the mid 60's working in a music store that had badly wired AC and I put my hands on two air circulation fans that were reverse wired (or plugged). It is a bad feeling to know what is going on and not being able to let go. Thank God for my boss, Jim. Saved my life the night the HVAC went down in the store.
Here is a good intro to grounding.
http://qtwork.tudelft.nl/~schouten/linkload/grounding.pdf
Grounding has been and will always be a great source of comment and a myriad of approaches. I don't care. All I want is the system that sounds the best that will not kill me. This simplistic approach implies that I understand all of the ins and outs, + & - and repercussions of me suddenly waking up stupid one morning and killing myself because i didn't want Big Brother to dictate to me how I MUST lay out my audio circuits.
I roll 2 ways: 1 - a SERIOUS ground system with triple ground rods at the entry service and BIG (#8-ish) wire as a ground return back to the system.
The way that sounds best.: 2 - intelligent home runs for (1) analog (2) digital (3) other - in the system. Make sure everything is wired properly, including gear chassis grounds being real, etc... and then plugging all of the plugs in wide pin = Neutral. Systems just sound best this way. I don't mean to Poo-poo safety, but Americans survived without safety grounds for many years. It was the poor and unlucky few that died from standing voltage differences, etc back in the unpolarized plug days.
Oh, the reason some products come ungrounded is that risk evaluation has been done on that product and it was determined by an algorithm that death/renumeration was at a point to where the additional cost of materials, testing, etc outweighs the cost on one more wire... that probably would never come into play. It's about CYA to a point, indoctrination, lack of kowledge and convenience.
--- End quote ---
Weird deal when you answer a question and then come back the next day to send it. The draft didn't accept my changes or the "GROUNDING" URL
Spelchick dun - Toodles
rollo:
If I understand you properly. Circuits properly grounded. Component chassis ground intact. Un-ground components into circuits. Right now my system components are ALL un-grounded. Actually each Uber is cheated for [4] dedicated 20a lines.
charles
dBe:
--- Quote from: rollo on December 13, 2017, 12:55:38 PM ---If I understand you properly. Circuits properly grounded. Component chassis ground intact. Un-ground components into circuits. Right now my system components are ALL un-grounded. Actually each Uber is cheated for [4] dedicated 20a lines.
charles
--- End quote ---
Yup. Pretty much.
Stream of consciousness alert!
You remind me of Nick! Unground the world and everything sounds better, except for all of the gear that needs to be properly mechanically grounded!
I am continually amazed about the effect of minor tweaks on SQ. Granted, taken one at a time they may or may not be that obvious. Sometimes it is "that feeling" that all too often is described as snake oil or the product of the rear of a male cow.
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