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Problem: PSU for Raspdac
#1
Hi all,
I know this has been done to death but regardless of reading pretty much here on, or if a linear PSU benefits sound quality.

I have the Audiophonics Raspdac kit Raspdac kit with the V4 DAC, I power the streamer using the DAC's power input, this is said to be a much better way than using the Pi's USB to power both Pi and DAC.
At moment I use a Switched mode PSU that can pump out up to 4 amp continuous into the DAC's power input so there's no issue with current draw, I've set it to 6v as this is recommended by Audiophonics.

Would there be any improvements with sound quality using a linear PSU to the DAC instead of the SMPSU? Remember, the Pi gets power from the DAC.
Many thanks,
Mark Blush
Reply
#2
(09-07-2019, 01:17 PM)Strider Wrote: Hi all,
I know this has been done to death but regardless of reading pretty much here on, or if a linear PSU benefits sound quality.

I have the Audiophonics Raspdac kit Raspdac kit with the V4 DAC, I power the streamer using the DAC's power input, this is said to be a much better way than using the Pi's USB to power both Pi and DAC.
At moment I use a Switched mode PSU that can pump out up to 4 amp continuous into the DAC's power input so there's no issue with current draw, I've set it to 6v as this is recommended by Audiophonics.

Would there be any improvements with sound quality using a linear PSU to the DAC instead of the SMPSU? Remember, the Pi gets power from the DAC.
Many thanks,
Mark Blush

Hello Mark,

as power supply I had at the beginning the power supply 7.5V / 2.93A - Audiophonics I-Saber V3-V4 DAC in operation .... had no problems with that ....
Then I ordered the linear regulated power supply 6V / 3.5A / 25VA - Audiophonics I-Saber V3 / V4 DAC, and I have to say really, (my assessment .. Smile that has become a bit better with the sound quality .... So I use since December 2018, the linear regulated power supply Smile

I hope I understood it correctly Smile
Ciao Zefi
Reply
#3
(09-13-2019, 10:38 AM)Cardone Wrote:
(09-07-2019, 01:17 PM)Strider Wrote: Hi all,
I know this has been done to death but regardless of reading pretty much here on, or if a linear PSU benefits sound quality.

I have the Audiophonics Raspdac kit Raspdac kit with the V4 DAC, I power the streamer using the DAC's power input, this is said to be a much better way than using the Pi's USB to power both Pi and DAC.
At moment I use a Switched mode PSU that can pump out up to 4 amp continuous into the DAC's power input so there's no issue with current draw, I've set it to 6v as this is recommended by Audiophonics.

Would there be any improvements with sound quality using a linear PSU to the DAC instead of the SMPSU? Remember, the Pi gets power from the DAC.
Many thanks,
Mark Blush

Hello Mark,

as power supply I had at the beginning the power supply 7.5V / 2.93A - Audiophonics I-Saber V3-V4 DAC in operation .... had no problems with that ....
Then I ordered the linear regulated power supply 6V / 3.5A / 25VA - Audiophonics I-Saber V3 / V4 DAC, and I have to say really, (my assessment .. Smile that has become a bit better with the sound quality .... So I use since December 2018, the linear regulated power supply Smile

I hope I understood it correctly Smile
Ciao Zefi

Thanks for the detailed response Cardone, I'm still looking at LPSU's and hopefully will find something that isn't ££££££!
Mark
Reply


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