Qobuz playback of 88,2kHz 24bit 2ch does not work

Roon Core Machine

OS: Ubuntu 22.04.1 LTS

HW Description:
H/W-Pfad Gerät Klasse Beschreibung

                          system         MZGLKAP-00 (01)

/0 bus MZGLKAP-00
/0/0 memory 64KiB BIOS
/0/28 memory 4GiB Systemspeicher
/0/28/0 memory 4GiB SODIMM DDR4 Synchron 2133 MHz (0,5 ns)
/0/28/1 memory DIMM DDR2 Synchron [leer]
/0/35 memory 224KiB L1 Cache
/0/36 memory 4MiB L2 Cache
/0/37 processor Intel(R) Celeron(R) J4105 CPU @ 1.50GHz
/0/100 bridge Gemini Lake Host Bridge
/0/100/0.3 generic Celeron/Pentium Silver Processor Gaussian Mixture Model
/0/100/2 display GeminiLake [UHD Graphics 600]
/0/100/e card0 multimedia Celeron/Pentium Silver Processor High Definition Audio
/0/100/e/0 input2 input HDA Intel PCH Headphone
/0/100/e/1 input3 input HDA Intel PCH HDMI/DP,pcm=3
/0/100/e/2 input4 input HDA Intel PCH HDMI/DP,pcm=7
/0/100/e/3 input5 input HDA Intel PCH HDMI/DP,pcm=8
/0/100/e/4 input6 input HDA Intel PCH HDMI/DP,pcm=9
/0/100/e/5 input7 input HDA Intel PCH HDMI/DP,pcm=10
/0/100/f communication Celeron/Pentium Silver Processor Trusted Execution Engine Interface
/0/100/12 scsi1 storage Celeron/Pentium Silver Processor SATA Controller
/0/100/12/0.0.0 /dev/sda disk 256GB INTEL SSDSCKKF25
/0/100/12/0.0.0/1 /dev/sda1 volume 511MiB Windows FAT Laufwerk
/0/100/12/0.0.0/2 /dev/sda2 volume 237GiB EXT4-Laufwerk
/0/100/13 bridge Gemini Lake PCI Express Root Port
/0/100/13/0 wlp1s0 network Dual Band Wireless-AC 3168NGW [Stone Peak]
/0/100/13.3 bridge Gemini Lake PCI Express Root Port
/0/100/13.3/0 enp2s0 network RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
/0/100/15 bus Celeron/Pentium Silver Processor USB 3.0 xHCI Controller
/0/100/15/0 usb1 bus xHCI Host Controller
/0/100/15/0/3 communication Wireless-AC 3168 Bluetooth
/0/100/15/1 usb2 bus xHCI Host Controller
/0/100/1c mmc0 bus Celeron/Pentium Silver Processor SDA Standard Compliant SD Host Controller
/0/100/1e mmc1 bus Intel Corporation
/0/100/1f bridge Celeron/Pentium Silver Processor LPC Controller
/0/100/1f/0 system PnP device PNP0c02
/0/100/1f/1 communication PnP device PNP0501
/0/100/1f/2 system PnP device PNP0c02
/0/100/1f/3 system PnP device PNP0c02
/0/100/1f/4 system PnP device PNP0b00
/0/100/1f.1 bus Celeron/Pentium Silver Processor Gaussian Mixture Model
/1 input0 input Power Button
/2 input1 input Video Bus

Networking Gear & Setup Details

Fritzbox Mesh Network. Current Release 7.50.All devices connected via LAN

Connected Audio Devices

NAD M10 v2 via LAN
RME ADI-2 DAC FS via analog input

Number of Tracks in Library

Description of Issue

HiRes recordings from Qobuz with 88.2 kHz 24Bit 2ch. do not work. Example: Open Qobuz
Every other combination works fine including Tidal FLAC 44.1 kHz 24bit, MQA 88.2 kHz.
My NAD 10 v2 plays the same track via BluOS without a problem.
Ok, 88.2 kHz are quite rare, but I would still like to know what the reason is that they do not run.

Greetings from Germany

I am running a Roon Core on Linux (latest 1211) and OSX Remote (1211) and I am able to play that album @ 88.2 khz (from Qobuz). Successfully tested my M1 Mac as an endpoint and also an external DAC (Focal). The external DAC correctly shows 88.2 khz and plays the songs.

1 Like

Here (Belgium) the album/track plays correctly :slight_smile:

It does not seem to be a ‘generic’ issue with Roon / Qobuz, unfortunately for you.

P.S. I am also on the latest new Roon releases.

Do a search for BluOs and 88.2 , seems to be a issue with BluOs, Dirac, NAD

I can’t remember exactly but perhaps try upsampling to 176.4 or 192

Hi OffRode,

You’ve hit the nail on the head. Strictly speaking, it’s a problem between Roon (!), Dirac, Bluesound and NAD. Because exactly the combination Qobuz 88.1 kHz, Roon, Dirac active and NAD does not work as long as Dirac is active. If you deactivate Dirac, it works.
Interestingly, it works directly from BluOS and it also works if you start without Dirac and activate it during playback.
So where is the error: with Roon, with Dirac, with BlueOS?

But thanks for the tip


Hi @Ralph_Hensel ,

Please see this related thread:


Wish I knew Ralph, I have a M33 NAD at my other home I’m going to return to next week so keep me posted please. I’ll do some more research when I get back there.

Best luck

Hi OffRode,
i will keep track of the issue and I will keep you informed about new information. Currently it seems that this is an known problem in BlueOS and the BlueOS-Dev-Team promised to fix it, but refused to say when. See noris comment on this.
It is a complex setup between Dirac, NAD, BlueOS and Roon. But ultimately it’s a marginal issue. 88.2 is a pretty rare format, at least in my experience, and NAD Master Series integrated amps are still damn good units. And they have promised to fix it. That’s the BlueOS advantage. They continue to develop it and don’t just leave you hanging like some other manufacturers do with their software for hi-fi equipment.


Agreed, @Ralph_Hensel. They do quality work and are generally quite responsive in taking in feedback about BlueOS or the products that run it.


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