The ultimate Power Supply Units for music servers (and other devices for cleaner power source)

[Cazzesman]

Thanks Chopin75.

 

This is the Isolation Transformer I have

 

https://au.rs-online.com/web/p/din-rail-panel-mount-transformers/1234242/

 

Regards Cazzesman

[George Hincapie]

3 hours ago, Chopin75 said:

Hmm, it is in Polish, correct? So I can't really tell what it is supposed to do. But perhaps you need to have it burn in for few wks. (300-500 hrs ?). Is it now the music is cleaner and thinner, more lean? This can happen when  dirt in the PS/line is cleaned up. And may have a perceived lack of warmth. Or it is merely unmasking defects in the sound system. 

 

 

Google Chrome automatically translates it for me into English. It has 2 DC blocker sockets, the other 6 have Schaffer filters. Yes, the sound has less depth and detail. Not hugely, but enough to worry me into posting about it.

[RickyV]

While looking around in the audio diy supply store of audiophonics, I came across this Female Socket Jack DC 5.5 / 2.1mm for PCB which looks identical to jack socket on my nuc7i7dn. Not only for the nuc’s but barrel jack connectors are use a lot in audio.

I noticed that the contect resistance is max 30mohm. That is not so good if we pay big bucks for power supply’s to get low impedance.

https://www.audiophonics.fr/en/jack-dc-plugs/female-socket-jack-dc-55-21mm-for-pcb-gold-plated-p-14073.html

 

I say try to avoid barrel jack connectors!!

[marce]

That is electrical contact resistance, not the power supplies internal impedance. At 1 amp current you'll drop 30mV (at the max. figure), just add this figure to the drop on the cable (determined by the cable's  resistance) and you'll have your total voltage drop from supply to load.

[RickyV]

25 minutes ago, marce said:

That is electrical contact resistance, not the power supplies internal impedance. At 1 amp current you'll drop 30mV (at the max. figure), just add this figure to the drop on the cable (determined by the cable's  resistance) and you'll have your total voltage drop from supply to load.

 

What I meant is if you have a power supply with an output impedance of say 5 mohm, a cable 1mohm and a barrel connector of 30 mohm wouldn’t be 36 mohm at the nuc circuit?

I am just wondering but some of us, not me, buy expensive power supplies and there is always talk about the low impedance of it. Then they use these barrel connectors which seem a high impedance connection. 

[marce]

Think of the power supply impedance (a mixture or resistance, inductance and capacitance) as the supply resistance to current flow, when a load demands more current the output impedance indicates how fast and accurately the supply can handle this current demand, the dynamic operation of the supply.

The connector and wire resistances are static and follow ohms law, and are resistance only., so they will drop the supply voltage depending on the current drawn.

Supply impedance is how fast the supply can accelerate, the lower the figure the better for a voltage source, 0 being the best. Consider 0 a turbo charged car it can do 0-60 in 2 sec, a supply impedance of say 10R would give 0-60 in 10 sec. The connector and cable resistance is the same as the road, tyre resistance, separate to the power of the engine!!!

Hope this helps illustrate the difference between the two.

 

[baconbrain]

Received my Sean Jacobs DC3 PSU a couple days ago and am using it to power my HQPlayer PC. With this purchase, I am now powering 90 % of my digital signal chain with Sean's PSU designs. (Server, HQplayer, Endpoint, and Switch)

 

Just wanted to mention that the improvement in overall SQ was (in my sincere opinion) immediate and apparrent. 

 

So with all the interesting scientific discussions going on in this thread, the proof for me is in the SQ pudding.

 

My perception: The quality of a PSU clearly makes a distinguishable difference throughout the signal chain.

 

[str-1]

On 9/4/2019 at 7:50 PM, baconbrain said:

Received my Sean Jacobs DC3 PSU a couple days ago and am using it to power my HQPlayer PC. With this purchase, I am now powering 90 % of my digital signal chain with Sean's PSU designs. (Server, HQplayer, Endpoint, and Switch)

 

Just wanted to mention that the improvement in overall SQ was (in my sincere opinion) immediate and apparrent. 

 

So with all the interesting scientific discussions going on in this thread, the proof for me is in the SQ pudding.

 

My perception: The quality of a PSU clearly makes a distinguishable difference throughout the signal chain.

 

I’ve already had some very helpful exchanges with Sean and feel myself ever closer to placing an order for a 2-rail fixed voltage supply with all the upgrade options, including the same regulator parts used in the Innuos Statement, which Sean says bring a slight advantage.

[baconbrain]

20 minutes ago, str-1 said:

I’ve already had some very helpful exchanges with Sean and feel myself ever closer to placing an order for a 2-rail fixed voltage supply with all the upgrade options, including the same regulator parts used in the Innuos Statement, which Sean says bring a slight advantage.

I had my DC3 built to the same specs as the Zenith SE and am not regretting the purchase one bit. Sean was even nice enough to provide me with longer connecting cables at no additional cost when I changed my mind at the last minute.

 

Fantastic service and product.

[str-1]

On 9/6/2019 at 8:52 AM, baconbrain said:

I had my DC3 built to the same specs as the Zenith SE and am not regretting the purchase one bit. Sean was even nice enough to provide me with longer connecting cables at no additional cost when I changed my mind at the last minute.

 

Fantastic service and product.

Have you ever heard any of the Paul Hynes PSUs and have a basis for commenting on how they compare to Sean’s DC3?

 

I find myself in two minds again now that I have learned that the Paul Hynes SR5s and standard-build SR7s are available to order from PHD Ltd, and have seen the info sheets for these.

[baconbrain]

I have not compared the two but honestly believe you will be happy with either one. They both build outstanding products.

[str-1]

Finally went for a 2-rail standard-build SR7.  Ordered and paid for on 22nd October.  PHD Ltd have told me that the transformer has been ordered and they will try to get the supply to me before Christmas.

[Summit]

14 minutes ago, str-1 said:

Finally went for a 2-rail standard-build SR7.  Ordered and paid for on 22nd October.  PHD Ltd have told me that the transformer has been ordered and they will try to get the supply to me before Christmas.

 

If I may ask, what was it that made you pick the 2-rail SR7 instead of one of the other top LPS that have been discussed here?

[str-1]

5 hours ago, Summit said:

 

If I may ask, what was it that made you pick the 2-rail SR7 instead of one of the other top LPS that have been discussed here?

I had for some time been wanting to get the best 2-rail supply I could and finally decided to go for it, unfortunately too late to get a custom-build double-regulated SR7.  It was a toss-up between an SR7 and a DC3, and I went for the SR7 because I already own an SR4-12 and am very pleased with it.  I also have a 15V Farad Super3 and two Pilot Pro 2 battery packs.  I expect the SR7 to be another step up from all of those.

[luisma]

Guys, quick question, a friend have $700 for an LPS, he would like to have 4 amps amd 5, 7 and 12 V output

 

Which one would you pick in that budget if any?

[Chopin75]

22 minutes ago, luisma said:

Guys, quick question, a friend have $700 for an LPS, he would like to have 4 amps amd 5, 7 and 12 V output

 

Which one would you pick in that budget if any?

Check out HDplex.

 

The old 200W is not being made. They have a 300 W and I think 800W ?  I am not sure if it can output 4 Amps.

 

Paul Hynes has multi-rail too but again not sure if it has 4A for all. But it is > $700 I think.

 

[Chopin75]

2 hours ago, Chopin75 said:

Check out HDplex.

 

The old 200W is not being made. They have a 300 W and I think 800W ?  I am not sure if it can output 4 Amps.

 

Paul Hynes has multi-rail too but again not sure if it has 4A for all. But it is > $700 I think.

 

Here is the link for Paul Hynes:

 

https://www.paulhynesdesign.com/sr5

 

THis SR5 can do > 4 A and has dual rail. I am not sure if it can do all 5,7 and 12 V

[str-1]

The new DC4 from Sean Jacobs - http://www.custom-hifi-cables.co.uk/home/power-supplies/dc4-power-supply

[Chopin75]

Ok need to revive this thread:

 

Has anyone tried or read reviews on this ?

https://www.ciunas.biz/product-page/copy-of-supercapacitor-power-supply-dual-voltage-outputs

 

It is a budget 5V LPS. - only 150 euro and has 2x 5V output

 

I want to find out what are the best budget 5V LPS around this price range

 

Both Farad and Paulhynes are single output and more costly.

 

  

[Hauser]

28 minutes ago, Chopin75 said:

Ok need to revive this thread:

 

Has anyone tried or read reviews on this ?

https://www.ciunas.biz/product-page/copy-of-supercapacitor-power-supply-dual-voltage-outputs

 

It is a budget 5V LPS. - only 150 euro and has 2x 5V output

 

I want to find out what are the best budget 5V LPS around this price range

 

Both Farad and Paulhynes are single output and more costly.

 

  

No answer for you but an alternative suggestion to consider - Allo Shanti dual 5V around 170 Euros

 

Martin

[pele1969]

I have a 9v Ciunas supercapacitor power supply feeding a sotm tX-usbUltra SE which replaced a ifi iPower.

 

To no surprise the Ciunas supercapacitor power supply gives a substantial improvement in SQ.The one thing that I immediately noticed (no burn-in) was a sense of presence. I have some experience with the "clean" sound of the Ultralow-noise LT3045 regulator. The Ciunas also creates a "clean" sound, but adds a presence and liveliness that is most welcome.

[4est]

34 minutes ago, pele1969 said:

I have a 9v Ciunas supercapacitor power supply feeding a sotm tX-usbUltra SE which replaced a ifi iPower.

 

To no surprise the Ciunas supercapacitor power supply gives a substantial improvement in SQ.The one thing that I immediately noticed (no burn-in) was a sense of presence. I have some experience with the "clean" sound of the Ultralow-noise LT3045 regulator. The Ciunas also creates a "clean" sound, but adds a presence and liveliness that is most welcome.

It would be my guess that it's because the caps have such a great current capability. What you describe is what I'd call PRaT, and that is what beefy power supplies get you in analog.

[Chopin75]

Thanks for all the info ! I may give the Ciunas 5 V a try and use it also to replace IFipower. I already have the HDPlex 200W but I am running out of 5V rails. Would be interesting to see if it is better than HDPlex or not.   

[str-1]

For those with about £400-£500 to spend on a supply, you could consider this update to the Paul Hynes SR4 https://www.paulhynesdesign.com/sr4t

[thotdoc]

On 6/30/2019 at 12:42 PM, Jud said:

Nice, but not a panacea. Considerations include noise associated with opto-electrical conversion, and whatever noise is kicked back into the mains by the units doing the conversion at each end.

I don't think most people appreciate what you keep trying to teach them...re the noise being kicked back into the mains.