Worthwhile $5 Tweak


A recent thread at Audioasylum about an $800 grounding system being marketed at Audiogon got a response from an inmate there suggesting that making a clean and secure ground connection was a worthwhile thing to do. While I cannot comment on the system being marketed, I can tell you that checking the ground in my 40 year old house was a very worthwhile thing to do. An old clamp, all rusted up, attached the ground wire to my main waterline. Bought a new brass or bronze clamp for $4 Cnd. (the cheapies are about $1-looked at them and they appear to be the same as the corroded one I had), gave the water pipe a sand and clipped and stripped the ground wires down and reconnected. A very worthwhile improvement to sound quality for under $5-highly recommended if you are in an older (or maybe even newer property) without dedicated circuits, grounds etc.
hdm
Of course you could have saved yourself $5 by simply disconnecting the grounds to your components outlets.

Perhaps not the safest recommendation, but you most likely would notice a definite improvement in your system's sonics as grounds have a way of injecting much noise into the AC.

Funny thing is, to realize even better performance after disconnecting all grounds, is to re-connect the ground only to your pre-amp. Not sure why, but this lowers the noise floor even further and really smooths out the highs as well.

-IMO
Stehno: I am actually in agreement with you on the floating/disconnecting of grounds. I run my system off one grounded receptacle, with two grounded power conditioners plugged into that receptacle. One conditioner is dedicated totally to my integrated amplifier which has the ground floated as a result of me removing the ground on its male plug. I found though that my DVD player (which has only a two prong plug) sounds and looks slightly better with the chassis grounded (I tried this on the suggestion of a power cord manufacturer who posts at Audioasylum) directly to the receptacle. Perhaps I should disconnect the ground on the outlet that powers the stereo and see what happens.

The interesting thing is that the TV (which is on a different circuit, and also grounded receptacle) seems to be offering a slightly improved picture even though it is also a non-grounded, or internally grounded piece. My thought is that the improved ground connection at least improves things in some minor way by improving the electrical system's ability to dump off the noise inherent in the ground of the total system more effectively, thus limiting garbage getting back into the live line. But I concur with you that, in general, the ground is the source of a lot of garbage and sonic degradation.
I got your non grounded amps---Ever get a static shock on a dry windy day;when touching your non grounded amp??
Hdm: To take your comments one step further, i would recommend applying some type of weatherproof sealant to the ground rod / point of connection once it is all cleaned up and re-connected. If you don't do this, you'll be right back where you started from in a matter of months due to corrosion from being exposed to the elements.

Coax Seal is the best product that i've found for this type of work. You can use it as a semi-permanent sealant on just about any type of connection that you can think of. It is highly moldable, so it fits just about any shape or contour that you're working with. It is also waterproof when properly contoured, so it keeps corrosion from finding a way into the connection. On top of this, it is easily removed should you ever have to get to the connection to make repairs or do general maintenance. You simply take some type of a blade, make a slice in it, peel it off and have at the connection. When you are done working on the connection, you can simply slap the old Coax Seal back on and mold it back into position.

Rat Shack used to sell this stuff, but i don't know if they still stock it. I haven't been able to find it on their website, but if i can find a part number for it, i'll post it. This stuff is very handy and once you use it, you'll understand why i think so highly of it. Sean
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Sean- followed your link to RS, found part #278-1645 $2.99 for 5'. I've had real problems with cable TV quality deteriorating over time, this should help that as well as my house ground. Great idea. Thanks.