[dmance]

I know this is a sensitive question - but may I ask if someone tried his M Scaler with an alternative power supply. You can also send me a PM

Being that M-Scaler is a digital to digital device and the bits it produces are always the same regardless of the PSU, I trust that your question really is "does adding a different external PSU reduce the M-Scaler's emmision of RFI into the dual coax link". The answer to which I don't know and since the only device that can test this is a chord DAC combined with your ears, I suppose even with a new PSU, people will still be adding ferrites to coax. Just in case.

 

[adyc]

Being that M-Scaler is a digital to digital device and the bits it produces are always the same regardless of the PSU, I trust that your question really is "does adding a different external PSU reduce the M-Scaler's emmision of RFI into the dual coax link". The answer to which I don't know and since the only device that can test this is a chord DAC combined with your ears, I suppose even with a new PSU, people will still be adding ferrites to coax. Just in case.

Or more importantly, does the switching PSU injecting noise back to the AC main and pollutes the rest of your audio? If I remembered correctly, Romaz has found benefit of putting his Blu and Dave into separate circuit.

 

[marcmccalmont]

Or more importantly, does the switching PSU injecting noise back to the AC main and pollutes the rest of your audio? If I remembered correctly, Romaz has found benefit of putting his Blu and Dave into separate circuit.

Might not be the switching power supply perhaps FPGA’s are just noisy devices with noise getting not only to the ground but back to the mains as well. I noticed an improvement with my PS Audio Powerplant where each outlet is isolated. I then got more
Improvement with short ac cables fully covered with ferrites. I don’t get the same results with Hugo2 being battery powered.

 

[spotforscott]

When I get my mscaler, I will be comparing the stock PSU against a PH SR7MR2XL power supply (should receive both in November) and let my ears decide what sounds best...

 

[auricgoldfinger]

When I get my mscaler, I will be comparing the stock PSU against a PH SR7MR2XL power supply (should receive both in November) and let my ears decide what sounds best...

Good luck getting the SR7 in November.

 

[auricgoldfinger]

Or more importantly, does the switching PSU injecting noise back to the AC main and pollutes the rest of your audio? If I remembered correctly, Romaz has found benefit of putting his Blu and Dave into separate circuit.

You are correct.

 

[musickid]

Would that void the warranty?

 

[auricgoldfinger]

Would that void the warranty?

Strictly speaking, it would void the warranty. However, a Paul Hynes SR7 isn't going to cause any problems that could damage an M-scaler.

 

[musickid]

Why take risks it has already been stated that extensive trials were undertaken in choosing the psu that's shipped from chord. Where else can a system be more noticeably improved so many options.

 

[auricgoldfinger]

Why take risks it has already been stated that extensive trials were undertaken in choosing the psu that's shipped from chord. Where else can a system be more noticeably improved so many options.

Clean power matters. A lot. You might be surprised by what you will find if you open your mind to the possibilities.

 

[musickid]

Maybe.......

 

[dawktah2]

Maybe.......

Are people using "my hearing" method on these power supplies or connecting to an oscilloscope?

I'm a scientist from Missouri...

Those of us in the US know what that means

 

[musickid]

I can't divulge any further information at this point. I will say however its truly electrifying.

 

[AndrewOld]

Why take risks it has already been stated that extensive trials were undertaken in choosing the psu that's shipped from chord. Where else can a system be more noticeably improved so many options.

That’s true, but there was a very critical review of the Qutest in this month Hi Fi News where the technical reviewer, Paul Miller, said that

“the supplied charger suffused the Qutest with sufficient switching noise and other interference that it proved impossible to realise it’s true technical potential. So I tested the Qutest with my (Oppo) smartphone charger thus ridding the DAC’s output of spurious noise”.

If this review is accurate - and Chord don’t seem to have answered it - then it is at least possible that Chord might have a problem with some of their bought in power supplies. Perhaps the manufacturer has switched components, perhaps something has slipped past QC at Chord, who knows. Not that the Qutest and the MScaler use the same power supply, but this review raises at least one eyebrow.

 

[spotforscott]

Good luck getting the SR7 in November.

Yeah, probably right. Hopefully before xmas