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RME User Forum → ADI-2 & 2/4 Pro series, ADI-2 DAC series → replacing power supply
does it make sense to replace the rme 2-pin power supply with a 3-pin power supply so that the device is grounded?
Something like this: https://www.bicker.de/files/downloads/d … bicker.pdf
If you have stray current related problems, an extra ground wire connected to a screw of ADI-2 is the cost effective and flexible remedy, something like this:
https://www.conrad.com/p/wolfgang-warmb … et-1337382
If you have stray current related problems, an extra ground wire connected to a screw of ADI-2 is the cost effective and flexible remedy, something like this:
https://www.conrad.com/p/wolfgang-warmb … et-1337382
thank you, but the price is about the same. And I personally think the 3 pin power supply with a Schuko plug more practical for me.
My question would be, would this have the same effect as the grounding module and would it be safe to replace the power supply?
The solution above works, is safe, and doesn’t void the warranty.
All this cannot be guaranteed for a non-standard PSU from Mr. Chin-Cheapo.
There’s even a mod-option for the ground-cable, even a layman can do:
inserting 100 Ohm resistor prevents ground loops while discharging the stray voltage.
What exactly are you heading for, what’s the problem you try to solve?
If you give as detailed as possible information we might be able to help.
In short, I think it does not make sense, as otherwise such another PSU would have been supplied with the unit
Unfortunately that is not true. We would have supplied such a PSU if it were available. For years the PS industry did not want to do it, at least for these small wall warts. We are now in the process to finally receive grounded PS, but until they start shipping with all our products will take some time.
Unfortunately that is not true. We would have supplied such a PSU if it were available. For years the PS industry did not want to do it, at least for these small wall warts. We are now in the process to finally receive grounded PS, but until they start shipping with all our products will take some time.
I read this like that in time we will be given the option to order a RME certified, grounded SMPS like any other spare part for those who need that.
...We are now in the process to finally receive grounded PS...
In my experience in 90% or more of all cases a fully grounded PSU causes more trouble then the little stray current of an ungrounded one.
And ungrounded PSU gives you all the options to insert your own grounding scheme.
Best would be, having a PSU with fully grounded primary - for security - and a resistor grounded secondary - to avoid the ground loops you find everywhere in audio.
BTW: there’s not much that can be grounded on a primary of a SMPS encapsulated in plastic.
My allegedly Deficient OEM Pwr Supply has been a Platinum Certified Rock Star since it's beginning Four Years ago. Completely Noiseless.
This is the PSU that the ADI2 DAC received it's stellar measurements with. It works similarly for me.
I will NOT replace it. Deficient installation, with sub-standard, 100yr old, Not to Code electrical Wiring may require KaiS's grounding solution. Here in the US? I can't insure my property unless it meets Current Electrical Safety Standards. Get it?
Curt.
* I've never changed my Mind on the stock RME PSU!
MC wrote:...We are now in the process to finally receive grounded PS...
In my experience in 90% or more of all cases a fully grounded PSU causes more trouble then the little stray current of an ungrounded one.
Best would be, having a PSU with fully grounded primary - for security - and a resistor grounded secondary - to avoid the ground loops you find everywhere in audio.
And that is ecxactly what I described in an earlier post. These new PS have a 1k resistor DC minus to PE. Reduces leakage voltage from mains/2 to below 1 Volt. And no ground loops.
I can’t seem to find a place to buy those upgraded grounded power supplies. ?
Because they never have been produced.
Because they never have been produced.
The “soft grounded“ PSUs are available.
The 12V 3.3A PSU for ADI-2/4 Pro SE is delivered as standard and therefore must be available as spare, directly and/or through the RME distributors and dealers.
The 12V 2A ”NT-RME-12” for ADI-2 Pro and ADI-2 SE is listed on the RME page (albeit with non-lockable connector):
https://www.rme-audio.de/de_cables-adapters.html
(Go to Power Supply)
Get the RME NT-RME-12 here for 29 bucks:
https://www.thomann.de/de/rme_nt_rme_12 … supply.htm
It has to strongly be pointed out:
For all those that don’t have lack-of-ground related problems, it does not make any sense to cross-grade to soft grounded PSU, even though it doesn’t hurt.
If you have ADI-2 wire-connected to a fully grounded device, if at least one device in your system has a 3-prong mains connector, soft ground does not make the smallest difference.
Can be ADI-2 via USB to a computer, audio cable to a grounded power amp or active speaker, AES or Coax (not Optical) to a player, or any.
Then you can and should use the standard PSU delivered with your ADI-2.
Direct, “full” ground completely dominates the “soft ground”.
May be something under development.
https://av.watch.impress.co.jp/docs/ser … 41063.html
May be something under development.
Interesting article , interview and photos regarding RME power supply in development
RME User Forum → ADI-2 & 2/4 Pro series, ADI-2 DAC series → replacing power supply
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