Audiophiles hifi appreciation thread old and new

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dbr in reply to @Airhead

Several SMPS for the little boxes, but the sub is well away from these. It’s a ground loop thing, just wondering if It’s ok for the jacket of the RCA to be grounded to the earth. It solves the problem and stops the hum, just don’t want to damage anything.

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Airhead in reply to @dbr

Short answer should have been, I don't see it as dangerous, but the Sub has no earth for a reason, if that reason is electrical safety then you might have some outlying possibilities becoming a little more dangerous.

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ChasnotRobert in reply to @Airhead

I'm struggling to see how making an earth connection could increase risk.

Generally, products which are double insulated don't require an earth; in my understanding this is largely a cost saving measure.

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