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

[Superdad]

8 minutes ago, FredM said:

I’ve been told the custom TLS Ref 1 is better than the SR7

Please note ‘been told’ and ‘TLS’ in one sentence..

 

Surprised to see you perpetuate such a myth Fred.  Since you also wrote:

 

And @auricgoldfinger stated this--though he seems to let slide Paul Hynes' even worse communication and delivery track record:

 

So many people report giving away their money and waiting forever with no updates and mostly excuses:

 

I honestly do not understand why people patronize such unprofessional (perhaps not a stretch to say unethical) businesses.  I spend more than 20 hours per week doing nothing but returning client e-mails, and I have never once accepted payment for product without promising and meeting a firm delivery date--typically either immediate of within 2-weeks shipment.  

Guess that is why there are now about 800 JS-2s in the field and close to 3,000 UltraCap units. 

 

My apologies if such discussion of business and reputation is off-topic.  Perhaps the TLS power supply is a fine unit, but nobody knows what is actually in the box.  (And there was this funky incident:

https://audiophilestyle.com/forums/topic/38316-the-linear-solution-lps912-design-for-sotm-products/?do=findComment&comment=772398

 

[Superdad]

12 minutes ago, auricgoldfinger said:

You gave the Farad3 design a good thrashing in these forums awhile back.

 

Excuse me?  I did no such thing.  Link please.  

If I said anything about them (I don't recall), it would have been over their publishing this bit of mis-information (since removed from their site but still on their reseller site):

"Why is Farad using the Super Capacitor power bank as smoothing caps and don't they switch between one bank while loading the other?

There are several reasons they don't do this. First it means extra switching electronics in the supply lines, second it means that you are using only half of the capacity from the super caps at a time. Third and we think most important reason: A value of 1 Farad means the capacitors are able to deliver 1 A of current for 1 second with 1 Volt drop. Suppose we have 10 F capacitance, deliver 2 A current from our supply and the regulator can typically handle a 0.5 V drop. This means capacitor banks have to be switched every 2.5 seconds... This means the final regulator gets a 0.4 Hz triangle wave with 0.5 V amplitude as an input signal, instead of a steady DC."

 

That last bit is 100% incorrect.

 

As for what is in the box not mattering:  Well I think it does.  Ask the fellow who paid $8K for a TLS One server and received it 8 months later with things rattling around inside. 
 

[Superdad]

36 minutes ago, Chopin75 said:

Currently I just use an optical USB cable from Corning that does the galvanic isolation without reclocking, seems to work better.

 

Really sorry to burst your bubble, but the Corning optical USB cable does not provide galvanic isolation.  It has copper wires running alongside the fiber cable—to power its far end transceiver. If you put a continuity meter on the plug shells at each end you will get a beep. 

[Superdad]

On 6/30/2019 at 7:51 AM, Chopin75 said:

The actual audio signal is still galvanically isolated but you can argue that the 5Vbus can cause interferences, though only at the distal and proximal end of the wire, which can be blocked with  Regen USPCB connector by blocking Vbus.

 

28 minutes ago, Chopin75 said:

This also proves that the tiny copper in the Corning is really too weak to do much contamination, as it can't really communicate with the downstream DAC. The Regen Vbus block would do the final trick.

 

Sorry, but this really is not true.  USB is D+ and D- plus ground.  The Corning connects PC ground to its distal end for its circuitry and that is the path for leakage.  Blocking of the 5VBUS+ does not break that path.  Therefore no galvanic isolation is provided by the Corning cable.  You have continuity from the PC ground to the DAC ground.

 

The primary benefit of the Corning cable (aside from its ability to greatly extend USB length) is that its thin wire introduces a few ohms of resistance to the ground line—and that sounds good.  We discovered this shortly after we introduced the very first USB REGEN back in 2015.  We wrote about it then and incorporated similar ground line resistance into what became the “amber” USB REGEN (which then sold over 4,000).  It is all chronicled (including discussion of the Corning) at this blog post way back then: https://uptoneaudio.com/blogs/news/20068483-usb-regen-updated-amazing-bass-all-unshipped-orders-will-be-the-latest

 

Of course the ISO REGEN—with its true galvanic isolation (plus other enhancements)—eliminates the need for those extra resistors.

[Superdad]

6 hours ago, Nenon said:

And I really hope it turns out to be as good as advertised.

 

Well we have not advertised EtherREGEN or made bold claims. We have simply explained its technology and how none of the core of what we are doing has ever been done in any other switch. 

 

6 hours ago, R1200CL said:

Yes we do. The opticalModule is released with very nice feedback. 😀

 

Very different products and techniques.  The active digital isolation and dual-clock/power/data domain circuits are not present in the opticalModule. 

Still, the fact that people report nice audible results with products such as the oM and some upgraded or premium Ethernet switches certainly bodes well for the next-level tech incorporated into EtherREGEN. 

 

5 hours ago, davide256 said:

Mine so far is that the ISO Regen has been tailored to bandaid timing defect characteristics, vs improving actual timing.

 

Sorry, but that’s not how it works nor how it was designed.  

Highly improved signal integrity, impedance match, and reduced noise and jitter (all as seen on an eye-pattern) results in the USB input of your DAC generating less of its own internal ground plane and packet data noise—such that phase-noise at the clock input pin of the DAC chip is reduced. 

ISO REGEN simply reveals more of the true character of the DAC.  I suppose in some cases that is not what someone wants to hear. 

I run the same model NUC as you, also under AudioLinux (quite nicely tuned by @lmitche), and its USB ports do very much benefit from SI improvement.