How important is EMI and RFI rejection?


In designing a cable....and what cable manufactuer(s) excell...

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Showing 8 responses by clio09

I don't doubt the Tripoint is better. I know Miguel and he has been playing around with grounding schemes for a while. I don't doubt he is on to something with the Tripoint. However, not everyone can drop $8k on such a device. As Danmyers said you could do it a lot cheaper and get good results.

Then again there are people like Charles Hansen of Ayre who have a totally different view on grounding.
Go over to Audio Asylum. Do a search there. He's posted his views many times. Ayre uses double insulated chassis' in their design so you can float the ground without the danger (according to Ayre anyway). Charles also lives in an old home where none of the outlets are grounded. I believe he floats all grounds in his system.

Here's on thread where Charles comments:

http://db.audioasylum.com/cgi/m.mpl?forum=general&n=525276&highlight=ground+charles+hansen

Based on what they're experiencing it appears that floating grounds has similar sonic effects to the Tripoint.
This is because the other goal of good grounding is to shunt excess energy away from the system. In a floating system, there is no where for the excess energy to go. This can still be fixed with a five cent capacitor.
Danmyers (System | Answers)

Danmyers, how would you fix it with a five cent capacitor?
Powder, I'd be interested in learning more. Feel free to email me offline to describe what you are doing.

I have a couple of components where the manufacturer does not have the ground connected at the IEC inside the components. Says it is a huge source of noise. Not sure how the grounding was addressed if at all. Never had any shocks and it sounded great.
Pictures would be great. Funny, I was wondering the same thing about how to work it out on my VAC amps.

Just another note. I just had a friend remove the ground wire from the chassis IEC inside his transport and noticed an improvement. I'm wondering if its worth it or even makes sense to mix the two concepts together: floating grounds and the chassis grounding scheme.