Turntable grounding

[joshleb]

Just picked up an Audio Technica LP3 turntable and am connecting it all up.

It's got a built in phono so I can connect it straight to my receiver, so I'm connecting the in-built RCA cables to an extension that I'll then plug into my receiver.

However the ground cable won't be able to reach my receiver. Can I put it on some other metal to ground, or do I bodge an extension for it to reach the receiver?

All the reading I've done says to connect to back of the amp/receiver.

Any tips?

[Glosphil]

Extend the earthing cable? That's what I have done.

Edited by Glosphil on Monday 25th January 15:24

[sociopath]

Have you tried the TT without it connected? I dont have mine connected and its fine.

Its not a "real" earth, so its not a safety issue, but also that means terminating it elsewhere won't work

[megaphone]

I doubt you'll need it if you are going to a line in.

[AndyTR]

megaphone said:

I doubt you'll need it if you are going to a line in.

Earthing is designed to reduce hum by grounding the tonearm and reducing the flow of electrical 'noise', you can earth to a plug socket, a radiator pipe or the amplifier. If you're using the line in and amplifying the signal from the turntable to the amp then this is essentially redundant.

[joshleb]

As a closure to this, no humming without any grounding.

Guess using the built in pre-amp stopped it

Cheers

[Dr Doofenshmirtz]

If the pre-amp is built in you won't need the grounding wire...only needed if you switch it to line out and use an external pre-amp or phono input on an amplifier.