Location: Bristol, UK
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I'm Stephen.
Location: Seaford UK
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I'm Dennis.
'Daisy chains' sounds like series connected earths which results in a build up of dropped EMFs. Star earthing to the main point is better.
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Turntable: Heavily-modified Technics SL-1210MK5G [Mike New bearing/ETP platter/Paul Hynes SR7 PSU & reg mods]. Funk Firm APM Achromat/Nagaoka GL-601 Crystal Record Weight/Isonoe feet & boots/Ortofon RS-212D/Denon DL-103GL in Denon PCL-300 headshell with Funk Firm Houdini/Kondo SL-115 pure-silver cartridge leads.
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I'd like to come to your house and measure your speakers going an octave lower with your entreq in place and see what if any currents you have running across your various earths.
I love the idea of inaudible noise, how can anything inaudible be noisy, aren't they diametric opposites?
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Location: Bristol, UK
Posts: 278
I'm Stephen.
A quote from Alan Sircom HiFi+ review from February 2018 Gutwire perfect grounding cable:-
‘Perfect does the background noise floor lowering and soundstage widening you might expect from grounding blocks.’
I think these two posts highlights one of the key problems with threads about 'contentious' products like the Gutwire.
Both posters I respect based on advice I have gathered in the past but clearly one of them must be wrong in this particular case:
Personally I would rather err on the side of caution than risk betting on the wrong one
(emphasis added)
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Stratmangler #64
The thing to bear in mind is that there's nothing mystical going on with the product brought to light in the OP.
The majority of audio equipment complies with class 2 electrical regs, and doesn't have a protective ground on it.
Using one of the leads in question directly connects the signal ground to mains ground, which may or may not have audible effects. You could knock up a lead for less than £5.00 that may not look as pretty, but it'll do the same job.
There is one thing that isn't considered, and that's induced RFI on the ground connection.
Oh, and under fault conditions your equipment becomes toast
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Barry #88
If you are using a class II compliant device, it is double insulated (and will be marked as such by having a 'square within a square' symbol on the back panel) and will use a two core mains lead. Adding a 'grounding lead', one which connects the signal ground to mains earth will not affect or compromise the safety of your amplifier.
It may or may not affect the sound quality.
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If you connect a Class II appliance to mains earth, then it is no longer a Class II appliance and is required to pass a different set of safety tests to guarantee its CE compliance.
This marvellous lead therefore strikes me as not only a pointless exercise (IMHO of course) but a slightly dodgy one.
Engineers: fixing problems you didn't know you had in ways you don't understand.