Connecting earth ground from Riaa amplifier

Falck · 848

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Offline Falck

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on: October 29, 2023, 01:26:15 AM
Hi Bottlehead

I have a question about how to connect earth cables to my Moreplay.
I have an Riaa amplifier and a step up transformer that have separate earth ground cables.
Usually I connect all earth cables to the chassis on my other preamplier (LEBEN RS100).
This prevents from getting "hum" in the signal.

How do you recommend connecting these earth ground cables to my Moreplay.
The Moreplay is really great sounding!!

Kind Regards
Falck
 



Offline sl-15

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Reply #1 on: October 29, 2023, 05:49:46 AM
Typically you want to connect the ground cable from your turntable to the phono pre-amplifier. If you have  a step-up in between you can also try to connect the ground to just the step-up and hear if it sounds any different. This is how I do it in my system and there is no hum.

Stefan Hampel
Soundsmith Carmen, modded Technics SL-1200mkII, Thorens TD 125 mk2 with SME V, Eros, Extended Foreplay III, BeePre2, Crack, Pioneer Spec 4, Sonus Faber Electa

Offline Paul Birkeland

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Reply #2 on: October 29, 2023, 06:52:21 AM
I would try things with no extra earth wire between the Moreplay and phono preamp to see if that works.  If it doesn't, you can connect an earth wire to any of the screws on the Moreplay chassis to grab an earth.

Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man

Offline Falck

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Reply #3 on: October 30, 2023, 09:44:11 AM
Thank You for sharing your knowledge about this matter. I will continue with some tests :)
Kind Regards
Falck


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