10-Feb-2021, 23:16
(This post was last modified: 11-Feb-2021, 12:14 by struts.
Edit Reason: Afterthought
)
(10-Feb-2021, 20:40)Mohmm Wrote: I am surprised by your discovery of Roon Ready allowing 24/96. I used this input for HiRez stuff, but Roon showed 24/48.
What's the reason of that?
I have to admit I can’t make head or tail of this. In what way does Phantom support RAAT at 24/96 but not at 24/192? My Phantoms at least appear to treat them identically.
I played a 24/96 cut of Nora Jones “Come Away With Me” via Roon. The Roon signal path shows it being padded to 64 bit for SRC and then downsampled to 24/48, consistent with the published limitation of DOS 2. The track played without problems on my K28 (mid-2017) Phantom Golds and sounded lovely. Then I played a 24/192 version of the same album, with *exactly* the same result.
Just to further add to the confusion both tracks also play without problems from Audirvana via UPnP. So my Phantoms are not rejecting 24/192 material sent over either RAAT (which downsamples to match endpoint) or UPnP (which afaik doesn’t), even if it is downsampling both to 24/48 before conversion.
So I would say either these inputs support 24/192 (in the sense that they will accept input programme at that resolution) or that they support 24/48 (in the sense that regardless of whether the programme is 24/96 or 24/192 it is downsampled to 24/48 for DAC).
Now I realise the 24/96 spec for the Roon input refers to the Phantom I 108 dB, so maybe there is a difference between the two hardware generations? Could someone with the new model please rerun this test and report back?
Sent from my iPhone using Tapatalk