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General Asylum General audio topics that don't fit into specific categories. |
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General Asylum General audio topics that don't fit into specific categories. |
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In Reply to: Why not just correct the grounding problem in your amps? posted by Ralph on February 2, 2015 at 11:18:42:
Ground loops can occur with gear that has no wiring faults; check the link. Take the example of 2 components connected by an IC. If the ground lead of the IC has a non-zero resistance, then the voltage potential of component 1's chassis will be slightly different from the voltage potential of chassis 2.
If you put cheater plugs on the power amps, leaving only the preamp grounded via the 3rd prong, the problem is solved, but there is risk. Should there be a fault in an amp that puts its chassis at line voltage potential, the IC ground lead has to carry the current to the preamp chassis, then to ground. That's fine as long as the conductor in the IC is up to the task. I'd rather keep everything grounded via the 3rd prong and use an isolation transformer which breaks the DC connection between components. No hum and no electrocution.
WW
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Follow Ups
- RE: Why not just correct the grounding problem in your amps? - Bill Way 02/2/1512:51:03 02/2/15 (1)
- There is a solution for this - Ralph 13:23:15 02/2/15 (0)
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