I recently started using a Roon Rock (Nuc 7i5 with 1GB SSD) feeding a Devialet 440 via USB and although generally happy with the convenience have always felt that something was lacking.
Whilst searching on eBay I came across an 18v/4.2 anp Linear supply from a Chinese source at what seemed a reasonably attractive price (just over £110). The unit arrived within a week and all I can say is that it has revolutionised the sound quality. Suddenly music is more focussed with musicians having their own space, backgrounds quieter, instruments cleaner with the ‘digital edge’ gone, vocals have taken on a new dimension.
The difference to me is enourmous and can be likened to when I moved from a reasonably expensive CD transport to a full 4 box dCS stack connected by Nordost Valhalla’s.
If you like the Roon Rock, I think you will be over the moon moving to a linear supply
Considering there’s LAN cable on both sides of this, I’m wondering just what difference the LPS could be making. I just don’t know enough about this stuff. I wouldn’t think the NUC would be doing any processing on the bits in this configuration, it’s just doing bit twiddling, right? What diff would the power supply make?
Instead of my usual Allo DigiOne on the network for stereo listening (where a good LPS does make a difference), I use the HDMI output of my Roon Core NUC when I want to hear discrete 5.1 surround. So I’m interested in the OP’s experience.
I am also skeptical about this. I understand that if a DAC is directly connected to the Nuc via usb then there is an electrical connection and the Nuc power supply could affect DAC performance. Of course there are all sorts of USB decrapifiers that are meant to counteract this and DAC’s with good usb inputs shouldn’t be affected much by the computer’s noisy signal. I don’t know how ethernet cables work as far as galvanic isolation goes but if they go back to a router powered by a smps that would negate the improvement a linear power supply would provide no? And what about Wifi? If one uses a wireless connection then there should be no difference between what kind of power supply the Nuc and router use right?
To be honest I have no interest in any of the technicalities and my post was placed purely on my audible experience, for me my ears and the emotional experience of music are more important than any technical rational. Why a linear supply should have any benefit or not can only be explained by people who have a lot more technical expertise than myself, however it is interesting to note the development of some of the upmarket streamers is based on better linear ‘medical grade’ supplies.
The unit I bought had the eBay item number 122130576557 for those who may be interested.
good morning Roon Lovers!
I just ordered a NUC i3 to build my own Roon server.
That will be the above mentioned i3, a 64g B SSD, 8GB RAM and Akasa Plato case.
I also have a couple of LPS which I am not using and I was wondering if any of those can work with the NUC:
Keces DC 116 12V/6A
Would any of these work with the NUC? Or am I going to damage it?
Thanks in advance for any advice
It worked OK for me. But I ran off lead acid gel batteries so there was a much higher current capability if the NUC required it. That was a gen 5 i5 so obviously its power demands were lower than a later i7.
If the bulk of your music has been analysed then it shouldn’t matter. If it doesn’t work you can always try the bigger supply but to be honest just choose the one you think is best based on sound and convenience.