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In Reply to: RE: Clean Ground posted by skudra on September 21, 2014 at 11:18:44
I run the entire system - analog and tubes - ungrounded. It's the quietest it's ever been. No plans on future grounding, at least in the current (geddit?) house.Safety be damned.
Edits: 09/25/14Follow Ups:
Waxxy,
May I recommend grounding to a polished, contact-enhanced brass-fitting on the water-pipe beneath your kitchen sink/ bathroom basin with Teflon-covered, silver-coated, 18-gauge, copper-wire from eBay? Allowing the corruption to escape via an uncompromised water-pipe infrastructure extending miles drops the noise floor substantially more than floating (that merely isolates from domestic ground corruption).
Should you have a Mac Mini music server (computers have so much dirty linen to send out), then using the sound input jack with a 3.5mm stereo plug to connect its ground to the other unused water pipe with more of that wire produces another larger additional drop in the level of background distortion. Introduce the negative terminal of a large 6-volt battery into that wire near the Mac Mini to increase the differential and the signal-to-noise ratio improves markedly again. In four years of daily tweaking this is the single biggest bang-for-buck sound quality improvement that I have yet heard other than enclosing the Mac Mini's internal power supply with MuMetal.
Economizing with less expensive copper wire is tempting at first but it noticeably stops the reduction of ground corruption on the top end, so having done both, I would not recommend that false economy.
This tweak (only a refinement on my part) is addressed to you and any other open-minded member as I am well aware that it may be a ground too far for the safety anxieties of the majority.
Dry Ginger
Actually I have tried grounding to my main water pipe where it enters the house. I wasn't using any fancy dancy wire, just some heavy gauge ground wire leftover from a telecom contract. I also have tried connecting to a ground rod in the garden.
For me, and my system, the quietest set up by far was floating the entire rig.
I ain't never going back! Safety schmafety!
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