Comment on [deleted]
socsa@piefed.social 3 weeks 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 3 weeks 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 3 weeks 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 3 weeks 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.