Volumio High End Player

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Volumio High End Player

Postby statequieta » Sun Oct 30 2016 09:57

Blooze wrote:Alex, where did you get your case and what size is it?


Yes! Please share info about the case, I've been searching all over the forums and internet for a case like that one (high-end like equipment) but it seems not easy to find them!
Amp: Exposure 3010s2 - Speakers: Sigma T11 - RaspberryPi + HiFiBerry DAC + Volumio - Synology NAS
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Volumio High End Player

Postby Videopac » Mon Oct 31 2016 08:58

statequieta wrote:
Blooze wrote:Alex, where did you get your case and what size is it?


Yes! Please share info about the case, I've been searching all over the forums and internet for a case like that one (high-end like equipment) but it seems not easy to find them!

It looks like a hifi2000 case:
https://www.modushop.biz

Those cases are quite popular for DYI audio projects.
I'm planning on using on of these for my Odroid C2 - Soukris DAC - Hypex NCore all-in-one project as well.
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Volumio High End Player

Postby AlexD » Mon Nov 07 2016 07:36

Hi, sorry for my late reply.
Right, this case is from modushop. I'm using these cases for the most of my projects. With a few modifications very usable.
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Volumio High End Player

Postby Baldrick » Thu Jan 05 2017 14:32

Curious about your discrete analogue stage.

Care to share your schematic?
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Volumio High End Player

Postby AlexD » Fri Jan 06 2017 06:39

The schematic is nearly the same from tha datasheet
http://www.ti.com/lit/ds/symlink/pcm1794.pdf

The op-amps are LME49720HA and LME49710HA. I have modified the output filter with higher impedances than in the datasheet for lowering the load of the I/V stage.
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Volumio High End Player

Postby p1234321 » Mon Jan 09 2017 13:26

Hello,

Very interresting project! what powersupplies do you use there? and why three different ones?


best regards

paul
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Volumio High End Player

Postby AlexD » Mon Jan 09 2017 13:51

All power supplies are diy. There are 3 separate ones to give best performance for every stage and to avoid interactions between digital and analog parts.
One power supply is for the raspberry only, it has an extra mains filter for a clean power rail. All computers are noisy, so the raspberry as well. This keeps the noise far from the analog stage.
The second one is for the DAC and the third one for the output stage.
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