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Grounding a phonostage

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Grounding a phonostage Empty Grounding a phonostage

Post by kamfei0512 on Tue Feb 20, 2018 4:46 pm

Greeting to all,

This might sound like a noob question but I can't help but to wonder how a phonostage grounding really works.

Looking at the picture attached below, there is only a 2-pin wall wart power supply used to power this phonostage.
And the so-called "Ground" on the phonostage is mere physical contact to its casing only.

Saying this, do I need to connect additional piece of wire from phonostage to mains, in order to ground the phonostage properly (other than the ground wire from turntable to phonostage)?

Regards,
Leong

Grounding a phonostage Ln108big
kamfei0512
kamfei0512
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Number of posts : 93
Age : 35
Location : Ipoh, Perak
Registration date : 2011-02-13

Character sheet
Source(s): Audio Alchemy DDS II + DDE v1.1, Google Chromecast Audio
Amplification: Arcam FMJ A19
Speakers: Audio Physic Tempo 25

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Grounding a phonostage Empty Re: Grounding a phonostage

Post by pleong on Tue Feb 19, 2019 1:02 pm

note your rca connector is also touching the case . thus grounding the case to the amp will ground all the case , the rca return . 
in fact once you plug the rca to the amp , all are already grounded. but if you provide a dedicated ground wire ( thicker cable) at he ground point will be sure better. 
some time , too many path of grounding will generate ground loop which will make thing bad . Hum sound.

pleong
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Registration date : 2018-01-29

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