SMPS and grounding

[tboooe]

7 hours ago, tboooe said:

Guys a question.  I am trying to figure out if its worth trying this grounding technique on my power cables...I use some Synergistic Research power cords which have "active shielding" that requires a SMPS.  Is it possible for SMPS leakage to go through the AC power cord, into my equipment and eventually into the rest of my system?

 

 

Holy smokes.  Just measured the output from the Synergistic Research SMPS powering the active shielding of my power cables and its 35V!  Not what I was expecting.  

[lmitche]

30 minutes ago, tboooe said:

Holy smokes.  Just measured the output from the Synergistic Research SMPS powering the active shielding of my power cables and its 35V!  Not what I was expecting.  

AC or DC?

[Superdad]

48 minutes ago, R1200CL said:

Wrap it in...

 

Moo metal? 

 

 

[tboooe]

1 hour ago, lmitche said:

AC or DC?

That's DC.

Upon closer inspection the SMPS do not have a grounding pin.  

Just completed the grounding plug with some random bits and pieces I had laying around.  I have 2 drain wires going to the same plug.  I read in this thread that having multiple SMPS connected to the same ground plug is ok?

Now for some listening.  I will report back shortly.

[JohnSwenson]

6 hours ago, Forehaven said:

John, I too have some buzzing now with the shunts, but I used like Ted, the 24g silicon tinned wire for the shunts.  Are you now saying we should be using something like 12-16g wire instead to help overcome some 'shunt resistance'?

You should be using heavy wire for the two short pieces between male and female barrel connectors. The 24AWG wire is fine for use to the AC wall plug. See the pictures in the original post.: big heavy bare wires between barrel connectors and thin wire to AC plug.

 

John S.

[Boomboy]

John s .. been following this thread and about to do this 2moz . Keen to try as peps are giving it good feedback  .. anyway

 

My netgear gs105 runs ethernet to my sms 200 and another to raspberry pi running openmediavault . Pi has a powered hub running to it for usb storage .. so should i put the shunt on netgear switch , pi and  hub which will be plugged into same board or just switch ?

 

Thnx 

[jamesg11]

“Not sure I fully understand your question. If your after a special custom made cable, you can email Ghent.”

 

Given earlier discussion of cabling issues, noise antenna etc, what sort of custom usb cable should I get Ghent to make?

[R1200CL]

43 minutes ago, jamesg11 said:

Given earlier discussion of cabling issues, noise antenna etc, what sort of custom usb cable should I get Ghent to make?

 

I think @Cornan did order a special made USB cable. If that is suitable for you I don't know as I actually not sure what you expect to achieve for this tweak. As I said I notice you already as an Ethernet chain for your audio since you use the UR. And the USPCB as well.

 

Maybe you think some sort of noise from the USB interface and cabling of HDD/SSD is traveling through to your UR ?  

 

You can separate or disconnect power. Add external power. Have special connector requests etc. And then you can add shielding or not.

But i think the USB specifications already have some sort of a minus (or shield included).

 

I think if you expect some answers here, your must explain better. Maybe add pictures. schematic.

 

[Cornan]

19 minutes ago, R1200CL said:

I think @Cornan did order a special made USB cable.

 

Yes, I ordered this special USB cable from Alex @ ALT Hi-Fi. I actually asked Ghent first, but he could'nt do it since he do not make the cables himself. Alex does. He uses silver plated wires. It is clearly my best USB cable up to date. 

I am so happy with my USB cable that I am now in discussions with Alex to make me one with better plugs, silver plated shield sleeves and Mundorf gold/silver wires. A nice looking and optimized version to keep for a long time.

[R1200CL]

@jamesg11

See further info and my question to @Cornan over at DIY tread where the JSSG started.

[tboooe]

OK after listening for a few hours I would say this grounding tweak does have a positive impact on my system, albeit a subtle one.  Depending on the song it seems this tweak made the background a more black allowing me to hear slightly more detail.  I've paid much much more for less improvement so needless to say I will be keeping this in the system.

[Cornan]

2 hours ago, tboooe said:

OK after listening for a few hours I would say this grounding tweak does have a positive impact on my system, albeit a subtle one.  Depending on the song it seems this tweak made the background a more black allowing me to hear slightly more detail.  I've paid much much more for less improvement so needless to say I will be keeping this in the system.

 

If you want to optimize it you should consider silver plated wires for the JSGT. It makes a noticable improvement over copper wires.

[tboooe]

3 minutes ago, Cornan said:

 

If you want to optimize it you should consider silver plated wires for the JSGT. It makes a noticable improvement over copper wires.

so you are referring to the drain wire?

[BigGuy]

4 minutes ago, Cornan said:

 

If you want to optimize it you should consider silver plated wires for the JSGT. It makes a noticable improvement over copper wires.

Help!   Getting confused between JSSG and JSGT

[Cornan]

Just now, tboooe said:

so you are referring to the drain wire?

 

Yes, it do make a difference for the better. Pure silver is best, but silver plated wires is a clear strip up.

[Cornan]

2 minutes ago, BigGuy said:

Help!   Getting confused between JSSG and JSGT

 

JSGT= John Swenson Ground Tweak (DC- output grounding)

JSSG= John Swenson Shield Ground (cable Faraday cage)

 

?

[tboooe]

12 minutes ago, Cornan said:

 

Yes, it do make a difference for the better. Pure silver is best, but silver plated wires is a clear strip up.

Interesting...whats a good source for pure silver?  What gauge?

[Cornan]

2 minutes ago, tboooe said:

Interesting...whats a good source for pure silver?  What gauge?

 

Here is a couple of tips that I recently shared at the DIY DC power cables thread:

 

Silver plated wire https://www.google.se/url?sa=t&source=web&rct=j&url=http://www.ebay.com/itm/10m-Vanguard-1mm-square-high-purity-silver-plated-OCC-wire-Hi-Fi-Audio-cable-/182374776295&ved=0ahUKEwj7072F3MPXAhWiO5oKHbS0DZkQjjgIJTAA&usg=AOvVaw2nNBmAdCjTJaHX4D9Rex_X

 

Pure silver wire https://www.google.se/url?sa=t&source=web&rct=j&url=http://www.ebay.com/itm/Vanguard-solid-core-silver-wire-teflon-tubing-DIY-Hi-Fi-Audio-cable-0-6-1mm-/182466517035%3Fvar%3D%26hash%3Ditem2a7bda182b:m:m6u5O_NgJi_dkZnaETp4J8w&ved=0ahUKEwiJzcbD4MPXAhXmFZoKHQS_DJgQjjgIJTAA&usg=AOvVaw33M4cdMqVh884_6xgwXrVo

[Speed Racer]

Come on, now. You don't need a pure silver wire for the wire connecting the ends of the JSSG.

 

Let's not take the craziness of your tweaks thread and put in this technically sound thread.

[tboooe]

2 minutes ago, Cornan said:

 

Here is a couple of tips that I recently shared at the DIY DC power cables thread:

 

 

Thank you...what diameter do you suggest for the drain wire?

[Speed Racer]

1 minute ago, tboooe said:

Thank you...what diameter do you suggest for the drain wire?

 

Ask John Swenson if you want a technically sound answer.

[Cornan]

Just now, tboooe said:

Thank you...what diameter do you suggest for the drain wire?

 

>24awg works great! ?

[Superdad]

24 minutes ago, Cornan said:

 

If you want to optimize it you should consider silver plated wires for the JSGT. It makes a noticable improvement over copper wires.

 

Sorry Cornan, but while I appreciate your enthusiasm and the pleasure you get in doing tweaky things, I am going to call BULL on the notion that silver wires improve the ground-shunt of an SMPS.  That is just a bridge too far.

 

John's trick of shunting an SMPS' high-impedance leakage to ground makes a  measurable difference--and for some an audible one. But using a silver wire to do it is not going to do anything.

 

You can do these things (though replacing the 3+ Gopher SMPS units in your system would give real benefits) but I feel the need to say something here as I really don't want John's based-on-engineering mod to get too mixed up in hoofy-spoofy stuff.  We have enough of a time already with skeptics calling our actual products "snake oil."  

 

All good wishes to you,

--Alex C.

 

[Cornan]

1 minute ago, Superdad said:

 

Sorry Cornan, but while I appreciate your enthusiasm and the pleasure you get in doing tweaky things, I am going to call BULL on the notion that silver wires improve the ground-shunt of an SMPS.  That is just a bridge too far.

 

John's trick of shunting an SMPS' high-impedance leakage to ground makes a  measurable difference--and for some an audible one. But using a silver wire to do it is not going to do anything.

 

You can do these things (though replacing the 3+ Gopher SMPS units in your system would give real benefits) but I feel the need to say something here as I really don't want John's based-on-engineering mod to get too mixed up in hoofy-spoofy stuff.  We have enough of a time already with skeptics calling our actual products "snake oil."  

 

All good wishes to you,

--Alex C.

 

 

Alex! I am just sharing things that I have tried myself in my own setup. I am not trying to confuse people by randomly dropping bombs. I do think you should give it a try yourself before calling it bull. Using silver wires for grounding purposes is not something new. It have been around for many years and have been confirmed by a lot of people before me. Just saying that for someone that are curious this is simple thing to try and see if it improves things further. It did for me many times.

[ted_b]

Bu Cornan, what about being grounded is better in silver than copper?  These aren't sq issues, they are grounded vs not grounded, right?