NuPrime Raspberry Pi Server and DAC with volume control

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rustydoglim

Re: NuPrime Raspberry Pi Server and DAC with volume control
« Reply #80 on: 11 Nov 2016, 08:26 pm »
I will check with the factory about status.
This project is mainly to produce a chassis and power supply for DIY media server.  So, hard disk and DAC are optional.
We are building from DAC-9/STA-9 series chassis so silver should be doable. I have to check if there is going to be any silver for the first batch.

The goal of this project is not simply to produce a chassis for Raspbery Pi.  Eventually it will be revealed ;).

rustydoglim

Re: NuPrime Raspberry Pi Server and DAC with volume control
« Reply #81 on: 25 Nov 2016, 04:53 pm »
We ran into minor mechanical mistake and have to make a new back panel.

Now we are looking into offering Omnia P1 (without battery and screen) in this form factor too.
Basically instead of Pi + your own DAC, you can have
Omnia motherboard (see the other topic about this) + ESS9018 DAC or AK4490 integrated with super cap and custom audio processor plus sampling rate converter.  So you can run your favourite music streaming app on this server (it comes with a built-in Omnia Renderer and Omnia Media Server on this open Android platform).

zwizardofoz

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Re: NuPrime Raspberry Pi Server and DAC with volume control
« Reply #82 on: 17 Dec 2016, 07:59 am »
its beginning to look a lot like christmas... any updates to this Jason? even just as a chassis for some better looking R-Pi housing options would be good

rustydoglim

Re: NuPrime Raspberry Pi Server and DAC with volume control
« Reply #83 on: 18 Dec 2016, 09:40 am »
We are almost there. We ran into a problem insufficient USB ports and decided to add an internal USB hub to the back panel so some sourcing and mechanical stuff has to be redone.
I think we can start shipping in early January.

zwizardofoz

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Re: NuPrime Raspberry Pi Server and DAC with volume control
« Reply #84 on: 18 Dec 2016, 05:37 pm »
We are almost there. We ran into a problem insufficient USB ports and decided to add an internal USB hub to the back panel so some sourcing and mechanical stuff has to be redone.
I think we can start shipping in early January.

Awesome ... any updated layout, internal options and pricing?

RafaPolit

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Re: NuPrime Raspberry Pi Server and DAC with volume control
« Reply #85 on: 21 Dec 2016, 06:27 pm »
Really looking forward as to how this turns out.

Since I don't have a dedicated Amp, but rather a DAC-AMP all-in-one, I decided to 'replicate' this idea with a single Raspberry Pi 3 and Volumio as the OS DAP (Digital Audio Player) hooked via USB to the DAC.

In my limited understanding, this reduces the need (or at least bypasses most of the advantages) of a linear or other expensive PSU / filter. Another advantage is that I don't need extra modules on the RPi as the DAC portion is being handled by the external DAC.

I am curious as to what OS route you are taking? My guess is that regular distros with Plex media server would have the tendency of doing internal resamplings, and other factors.  On the other hand, using this ground-up bit-perfect distros like RuneAudio, Volumio, Moode, etc., would be a 'cleaner' and faster way of achieving better audio signals to the DAC.  Also requires a lot less configuration and allows for other neat features as having AirPlay built into the OS, pre-programmed radio stations, etc.

Any thoughts on software? What am I missing? Interested in insight regarding that part of this amazing PC-DAC you are creating.

Best regards,
Rafa.

rustydoglim

Re: NuPrime Raspberry Pi Server and DAC with volume control
« Reply #86 on: 27 Dec 2016, 04:55 pm »
Yes, space issue, but also to reduce noise. Since this is a source unit (i.e. small signal level and more susceptible to noise, it is also better to locate the power supply outside the box. There is a power filter board inside to clean up the external DC coming in from the AC adapter.
For other high end products like DAC-10, we use more expensive low noise power supply it can be located inside the box.

RafaPolit

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Re: NuPrime Raspberry Pi Server and DAC with volume control
« Reply #87 on: 27 Dec 2016, 08:42 pm »
Any word on the Software side? Or will this be left entirely to the user?

rustydoglim

Re: NuPrime Raspberry Pi Server and DAC with volume control
« Reply #88 on: 31 Dec 2016, 12:49 am »
This is DIY stuff, we can't support all sorts of software issues. There is a big Raspbery Pi support community out there.
We thought about installing Raspbery Pi and preconfigure everything, but still lacks the courage to make a commitment.
Seriously, if anyone wants to buy a preconfigured media server (and a player that you can carry away), it will be better off to get the Omnia.




zwizardofoz

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Re: NuPrime Raspberry Pi Server and DAC with volume control
« Reply #89 on: 5 Feb 2017, 02:28 am »
Jason, any updates...been another month slipped past?

rustydoglim

Re: NuPrime Raspberry Pi Server and DAC with volume control
« Reply #90 on: 8 Feb 2017, 06:43 pm »
Confirm shipping in March.  The reason for the delay is that we ended up putting a full USB 3.0 / C hub.
It is overkilled for Raspbery Pi but we are preparing for the capability to include the future Omnia server board.
Perhaps also Synology embedded board.

agdev01

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Re: NuPrime Raspberry Pi Server and DAC with volume control
« Reply #91 on: 23 Mar 2017, 07:53 pm »
Hi Jason, didn't see anything on the website, any updated pictures?  Currently shipping?

zwizardofoz

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Re: NuPrime Raspberry Pi Server and DAC with volume control
« Reply #92 on: 24 Mar 2017, 10:45 am »
We are waiting with baited breath :scratch: turning a shade of blue in the meantime

rustydoglim

Re: NuPrime Raspberry Pi Server and DAC with volume control
« Reply #93 on: 24 Mar 2017, 06:49 pm »
It is coming any time now. I will go update next week.

zwizardofoz

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Re: NuPrime Raspberry Pi Server and DAC with volume control
« Reply #94 on: 19 Apr 2017, 05:17 pm »
next week..month...they are slipping by and still nothing?