More to do with PSU’s in the setup…
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Does the minidsp run without psu? It seems to me the same
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Of course… if the NAA has USB 2.0 port, it will power the miniDSP.
Nope.
So depends what the NAA is
Also depends on availability of USBStreamer B - I see the multichannel model has 2 week wait. I can’t see the stereo version.
If discontinued then RPi4 + HiFiBerry Digi I/O is the way to go and you can also use it for NAA output.
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I would think that you are also HQplayer staff 
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I’m just the 3rd most advanced HQP user, behind Jussi and then @Chunhao_Lee
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Mon Dieu! THANK YOU, @yo3fxy, @dabassgoesboomboom, @Stefano_Antonelli !
Seems I have not noticed an elephant in the room!
Thank you, I also thought in terms of rooPlay, but my ROCK is also in the cellar, so directly using this rooPlay is not really practical.
Wow! How does that work exactly (concept) ? Do I understand correctly that I connect digital source to same NAA that feeds my DAC? And digital source content will go to HQP and back to the DAC after HQP DSP ? Although Stefano mentions special tweak in NAA settings that would be necessary? It’s getting interesting…
As the summary from the above I understand two possible technicalities:
a) @Stefano_Antonelli reccomendation is HiFiBerry Digi+ I/O hat
b) @dabassgoesboomboom reccomendation is USBStreamer B
Since my current NAA is simple RPi4 - both solutions in theory seem to fit all right. My current solution to stream any “Airplay” audio via HQP is the classic set up with “BlueSound Node” and “USBStreamer B”.
Now thinking along these lines, the device like Marantz SACD 30n or similar would then perfectly replace my rarely used BlueSound Node and I can reuse my current “USBStreamer B”. Well, keeping the streamer at 44100 setting, that is…
Would this assumption be correct?
yes since you have everything, nothing to buy
simply choose your NAA output as normal
then go select miniDSP input as per normal
It will just work, like magic
Note this will only play the CD part of your SACDs. You cannot output DSD over the optical output . Better to rip the DSD and store in Roon library
Out of interest, do you prefer spinning physical disc to storing the CD rip in Roon?
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Takes a LOT of space though compared to the SACD ISOs due to decompression to dsf. That’s why I’m trying to get the DSD stream to HQP through the NAA input. Unfortunately wasn’t able to get it to work yet 
Smashing! I can test this out now with available digital sources that I have, sounds like actaully I can take Node out of a cellar, not that it’s gonna bring much difference though, though, but… 
OK. CD part is very clear - USBStreamer B scenario would work for any CD transport. I also assume via optical it would handle other PCM rates, which would require manual switching in HQP.
I wonder, is there a “real time” SACD solution ? Would HiFiBerry Digi+ I/O hat as suggested by @Stefano_Antonelli work for SACD transport streaming?
Also I understand that there’s multichannel challenge, for now I’m exploring 2ch playback options.
Open to any ideas.
“that is the question” (c) spoken by Hamlet
In my library I have a collection of digital rips including CD’s, DVDA’s, LP’s and few hundreds of SACD’s. The recent progress in digital HiRes streaming is immense and there are a lot of music out there. However more often than not I strat catching me thinking that true art aspect of some recordings is being totally lost by increasingly non-stop AI playlists clulture or approach. There are albums that are incredible pieces of work from the content, mucisal, poetic and recording perspective. So more and more I miss this ritual, of having an album, putting it in, enjoying every detail of it, and when it stops, having just WOW and silence… Can I do the same vith digitized source, certanly yes, but I think the large part of art concept is missing. In the same line of thinking I’m looking at this or similar: TN-400BT-X | OVERVIEW | TEAC | International Website I’m not interested in bying hundreds of LP’s, but there are some gems out there…
as far as I know there are licensing issues (Sony owns the rights) that prevent sending the DSD layer via COAX/Toslink to an external DAC, it seems that this is only possible using the HDMI output (if it exists), therefore it should be impossible to play the SACD/DSD layer through the hat
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CD is only one rate, so no need to switch rates in HQP?
I don’t think so. @jussi_laako is the expert here
But if you google for an SACD player with DSD layer over optical/coax output, I doubt anything will come up? Probably due to licensing issue as @Stefano_Antonelli says.
If something comes up, then should be possible.
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I’m not going to buy a HiFiBerry Digi I/O but I can try miniDSP USBStreamer B+ RPi4 and try to feed DoP64 into the miniDSP and see if I can get it into HQPlayer via RPi4 NAA input.
But even if it works 2TB storage is cheaper than miniDSP USBStreamer 
I’ll try though, for science lol. Maybe next weekend.
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@Stefano_Antonelli , @dabassgoesboomboom seems you are very right on licensing problem! looking deeper into this Marantz SACD 30n documentation it says that “digital audio autput stops during playback of DSD”…
Sony that is! Oke, gone checking specs for good ol’ PS3 SACD model. What if it works? Although PS3’s are freaking noisy (I mean mechanically, and fan is like a jet)
Largerly yes - 44100/16 rate would cover CD transport and any Airplay type of streaming. HiRez content in my use case goes via Roon (Library and Qobuz). But I was also looking at turntables with digital output, what I found is not much, really, one “optical output” with 96/24 and this TEAC model with bluetooth! which I assume will be 48000 by… by what? 16 or 24, but question is - what this bluetooth turntable can connect to if not headphones or speakers ?
I know the PS3 was/is used to rip SACDs.
No idea about DSD output on optical but I’m sure stuff will show up in Google.
At quick google I am seeing a lot of USB output turntables…
Of course with RPi4 USB-C NAA input, should be possible.
Find a cheap one to test first.
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Yeah, but most if not all of these USB’s are for “ripping” and external software is required. I have one of those, Sony - great for LP into DSD ripping, but will not work on its own.
There are only very few turntables with digital streaming as long as I could find…
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@jussi_laako feeds his turntable into HQPlayer via RME ADI-2 Pro’s analogue inputs.
And then you can use any turntable you like.
And you can also feed optical and digi coax into the RME, and then into HQPlayer also.
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no kidding!
For me the whole chain is already working for PCM, just can’t buy that I’ll have to clog my HDD just for supporting DSD.
Point is also to prove whether the NAA input supports DSD or not.
Keen to hear how it goes with your miniDSP streamer. Sincerely appreciate the effort 
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No worries
I’ll have to play a DSD file from Roon on my Mac Mini to USB-to-optical convert (DoP) and feed that into the miniDSP optical input, connected to RPi4 NAA and select the PCM176kHz input and check DoP is enabled.
I have to find the USB to optical converter and the miniDSP and associated optical cables
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Wow! That sounds like a lot of hassle. Don’t bother in that case…