Comment on Audio enthusiast seeking safety advice
socsa@piefed.social 17 hours ago
The ground straps are for a turntable, not a power ground. The audio signal from a record player is incredibly tiny, which means it needs more amplification stages (usually if you have a phono input, it has another pre amp stage). Because of this it is important that the turntable and pre-amp have a common ground reference to eliminate things like a DC offset or ground loop which would otherwise be amplified more than other audio artifacts from other sources.
a_non_monotonic_function@lemmy.world 17 hours ago
Sounds like you’re confirming what I’ve been hearing from other people, that neither of these grounds contains any real danger?
And as for grounding the turntable, that makes a bit of sense, however I have a fairly modern one and I’ll have to check it. I don’t know that it actually has an external ground beyond the three prong plug.
Is grounding of the turntable still relevant in that case?
socsa@piefed.social 17 hours ago
I think most modern turntables have a built in pre-amp so it’s less of an issue. If it doesn’t have a ground lug itself then it’s probably not an issue.
a_non_monotonic_function@lemmy.world 17 hours ago
Yes, I believe I have a selector switch that allows me to select either the internal pre and for an external. I was thinking of going with the old external for a bit of additional configurability.