Broadband absorption! Didn’t even know about that. No, there isn’t. I need to learn more.
1 Like
There looks to be a 6" panel (broadband) behind ea subsonic and was curious if there were additional treatments built in etc…
The ceiling above the LP has diffusion and maybe absorption - which is a key area to treat.
Anyway looks fabulous.
1 Like
Jeez Rocco😳 what a setup! I run a linn system I’m very happy with and Roon makes using it a real pleasure. As for the highly informative discussion above and the old objectivity/ subjectivity issue, I may struggle to notice a slight improvement in sq after adjustments/upgrades but red flags go up as soon as it degrades even an iota…! The brain is a funny thing.
2 Likes
Thanks Chris
Yes, my first ever visit to a forum discussion. I had no idea about forum protocol nor all the audio nerds out there. I only know one other guy who is into this passion as I am.
And after this discussion, my brain hurts 
. So many things to consider. Lots of smart folks here. Very lively group and discussion!
4 Likes
If you are in the Bay Area love to have you come over!
2 Likes
Yeh, I’m a newbie too. You obviously value your music immensely, as do I 
. Keep being critical of what you hear and tell us about it. My other release is motorcycles, but that would be for another forum….
1 Like
Beware this forum is highly addictive 
Try the music sharing threads, all of them feel like home. One just needs 3 or 4 lifespans to follow and listen to all the music
4 Likes
I know may be an unpopular opinion but I hear a difference between Roon/BluOS/Audirvana feeds my NAD M33. Sometimes Roon sounds worse than the others. BluOS does nothing to the source signal but both Roon and Audirvana are set to oversample. Anyway chacun à son goût.
1 Like
Oversampling will change the sound depending on which filters are being used. Roon offer a few combinations of filters for you to choose.
1 Like
The LINN KLIMAX DSM is not a hifi piece, but it costs like 1. If you would get a very good quality dac, your opinion would be much different.
A better comparison would be Roon vs Audirvana, software vs software.
Since the hardware is the same I had the impression it is about app vs app. Roon vs direct stream from linns app (forgot the name).
And I guess you want the question,, what dac?
I have a dCS Rossini Apex DAC + dCS Rossini Clock. I have noticed that playing files via Roon/RAAT vs playing them on dCS Mosaic (over UPnP via Minimserver - same exact file) does not sound the same, and I would give the nod to Mosaic on sound quality.
Unfortunately bits are not (only) bits. The reasons could be that running the RAAT client on the DAC is computationally expensive or some other reason. It could be the LINN unit has limited compute power and the RAAT client is heavy enough that it produces a meaningful amount of electrical noise in the system. Hard to tell but it is not surprising.
The LINN KLIMAX DSM is not a hifi piece, but it costs like 1. If you would get a very good quality dac, your opinion would be much different.
This must be a troll post, the Klimax DSM is a very accomplished piece of HiFi equipment.
1 Like
A Topping probably.
The RAAT implementation is less heavy than the UPnP implementation, as the RAAT streams PCM raw, while the UPnP has to decode the FLAC. The CPU is nearly idle for RAAT, and probably pegged to max while streaming non-WAV files on UPnP (or streaming from TIDAL/Qobuz).
7 Likes
If you don’t mind me asking, what exactly does the core and the bridge/roon endpoint? Where is the critical step in terms of SQ? I’ve read your reference material but somehow these differences are not entirely clear to me.
P.S. I use a NUC running Rock that works perfectly and never runs hot. Then I have two options down the chain: a Zen Stream with USB out in Roon mode and the internal streaming engine of the Hegel H120, both over ethernet. I’m very pleased with the SQ and the fact that I never experience glitches or problems of any kind. Just works (with slight advantage to the Zen Stream).
Thank you
That’s very interesting information. The observation still holds though, I do find a higher level of ease in the sound of Mosaic vs Roon RAAT on the dCS Rossini Apex.
Roon/RAAT setup: NUC10i7 running latest ROCK, 32gb RAM, 500gb system SSD, 4tb music SSD inside, files are AIFF or DSF (for the most part), gigabit ethernet. Using no DSP at all of course.
UPnP setup: Minimserver running on macpro serving same files to dCS Mosaic
Network setup on Rossini end: ROBOfiber SFP-Ethernet bridge powered with an Ultracap LPS-1 power supply to a SoTM Isocat-6 filter to Rossini’s Loop ethernet port (so running at 100mbps). Same networking in both cases of course.
PS: Why the linear power supply and Isocat filter? Cuz I had them lying around. Can’t tell they make any diff.
PS2: Comps done with AIFF files so maybe your argument about decompressing FLAC doesn’t hold here.
This as well?
1 Like
Yes, I’ve read those, but thanks anyway. My point is “if you have an adequate Roon Core, where most of the heavy work is carried out, what difference does it make the Roon Endpoint/Bridge in the final quality of the sound getting to your DAC?” The answer to this question has a direct implication on how good (and expensive) the Roon Ready device must be. Thanks again
1 Like
In the audiophiles’ brains, predominantly!
10 Likes