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Audio Component Grounding and Interconnection
Audio Component Grounding and Interconnection
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Old 15th May 2018, 04:03 AM   #41
Bruce Berman is offline Bruce Berman  United States
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Location: Long Island, NY
David, this was an incredibly well-written and informative post. Thanks for taking the time to write this.

With regard to the section on using a physically separate power supply; this was not completely clear to me. Perhaps as such, you can clarify this.

My understanding, which may very well be incorrect, assumes the following:

-All of the power supply commons (negative returns) return to a single star point within the power supply, and this star is not returned to chassis ground within the power supply. Or are the power supply commons, which are connected to a star within the power supply chassis, also connected directly to the power supply chassis? This would imply two star ground returns for the power supply common; one on the power supply chassis, and the other on the amplifier chassis. This would of course create two separate grounds, with a potential difference between the two chassis, and could generate a ground loop.

-The safety ground of course connects directly to the power supply chassis.

-Or the power supply common star is only connected to the star ground within the amplifier chassis. The star ground within the amplifier chassis is connected directly to the chassis within the amplifier.

-The safety ground, which is connected directly to the power supply chassis, is also connected to the amplifier chassis.

Your guidance and clarification would be very much appreciated!

Thanks & Regards,

Bruce
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Old 26th May 2018, 01:45 AM   #42
david08 is offline david08  India
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Can a set of interconnect like this be custom made?

To be precise, I'm looking for interconnect with a (+) wire connected to both ends of the interconnect, a (-) ground wire connected to both ends of the interconnect, and a shield that is NOT connected to the (-) ground wire (as some interconnects out there) and where that shield is connected to only one end of the interconnect. Thanks.
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Old 26th May 2018, 09:46 AM   #43
scottjoplin is offline scottjoplin  Wales
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Yes, I presume you mean an unbalanced connection but using shielded twisted pair? Whether it is beneficial would depend on your set up.
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Old 28th June 2018, 05:38 PM   #44
pamiso is offline pamiso
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Excellent, Excellent Article. I love the idea of drawing out a ground diagram, we do it for signal why not for ground, great! I am going to print this off, and put it in my binder Labeled "Super Awesome Audio Design Refernece Guides"
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