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Forgetting surge protection for the moment, does star grounding

66.230.100.63
Posted on May 15, 2024 at 09:51:56
alaskahiatt
Audiophile

Posts: 7609
Joined: December 9, 2000
Contributor
  Since: November 1, 2005
 isolate digital from analog components? My electrical background is minimal, so I won't understand too much detail.

In Hong Kong, I once purchased the power strip pictured below, as I was told the importance of star grounding. I have never used this power strip, but I am now considering it. I do have an old API Power Wedge II conditioner as well.

I use a Yamaha CR 2020 receiver, an AR-XA turntable, a Sony DVP-S7000 CD/DVD player, and a Musical Fidelity Nu-Vista DAC. Occasionally I use just a Pioneer 59AVi DVD/CD player.

Thanks for any input, and I am also starting to search the asylum archives on this subject.








 

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RE: Forgetting surge protection for the moment, does star grounding, posted on May 15, 2024 at 10:38:14
6bq5
Audiophile

Posts: 4592
Location: SF Bay
Joined: August 16, 2001
 Star Grounding refers to having individual wires connecting PCBAs, devices, and in this case Outlets back to a single place for connecting the grounds together with mains ground, or a dedicated drain wire.

In and of itself, not a bad idea, assuming that the AC is clean, and that there is not a huge RF influence.

But it will not isolate one outlet from another, which I do not think is a good idea for audio anyway...
Happy Listening

 

Thank you. Sounds like I should just stick with my Power Wedge, as, posted on May 15, 2024 at 13:06:13
alaskahiatt
Audiophile

Posts: 7609
Joined: December 9, 2000
Contributor
  Since: November 1, 2005
 it does everything you mentioned using isolation, star grounding, RFI filtering, and protection from power surges.



 

RE: Thank you. Sounds like I should just stick with my Power Wedge, as, posted on May 15, 2024 at 13:36:41
6bq5
Audiophile

Posts: 4592
Location: SF Bay
Joined: August 16, 2001
 One thing to remember when talking about protection from Mains Power deviations, be they low or High, addressing surges - abnormally HIGH voltage is simple -
put a Thermistor in series with the line load-

Addressing Under voltage (aka Brownouts) is more of a challenge w/ out a true 'protection circuit' that will shut off the supply if the incoming voltage is below your set point - 120 VAC... typically involving some sort of sensor/or relay that has a narrow trigger band...
Happy Listening

 

This takes care of my brownouts nicely...-., posted on May 16, 2024 at 19:57:24
ABliss
Audiophile

Posts: 1546
Joined: March 16, 2001
Contributor
  Since: August 3, 2002






Highly recommended.

 

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