Ayre QB-9 Twenty not being discovered

Core Machine (Operating system/System info/Roon build number)

I am running Roon on a 2009 Mac Mini into an Ayre QB-9 Twenty dac and an Ayre AX-5 Twenty amp.

Network Details (Including networking gear model/manufacturer and if on WiFi/Ethernet)

MacMini currently running on WiFi, although I plan to switch to Ethernet.

Audio Devices (Specify what device you’re using and its connection type - USB/HDMI/etc.)

Mac Mini is connected to QB-9 DAC via usb


Not able to see the QB-9.
In selecting a device, the Ayre QB-9 is not shown. In going to Find Your Device, I find under Ayre only the EX-8, QX-5 Twenty and QX-8. No QB-9.

Robert, if I understand correctly, you are running Roon on your Mac mini (Core and control) and you want to play to your QB-9 which is attached to your Mac mini via USB. The QB-9 will not show specifically in Roon since it is not a Roon-tested device. You should be able to select the USB output of your Mac mini as the output and configure in the Settings. There is nothing magic about Roon “seeing” your audio device, it will work just fine.

Edit: I think Roon calls this the Built-In Output in the Audio Settings.


The Ayre QB-9 Twenty is not a part of our Roon Tested program. Therefore, we do not have a device icon for the device.

Although the QB-9 Twenty is not Roon Tested, we are not aware of any incompatibilities with the device when using macOS at this time. So I would anticipate that things should work without issue.


Not sure is a 2009 macmini is going to work that well - that model is way below min spec for the record…so probably not the best experience you can have with Roon and such high end audio kit.

Somehow, got it working. No problem now. Thanks.

Wizardofoz, thanks. I plan to replace the Mac Mini but not sure with what.

It will do to prove Roon as a concept. I would think seriously about using Ethernet rather than WiFi. And don’t do any DSP or upsampling and it should be OK for the time being.

If you like the Apple ECO system any younger than 5 years MM should be fine - assuming a small to medium sized library. Wifi on the core is really stretching the friendship especially on a Mac that old as its only going to support 802.11a/b/g/n and I would forget anything DSP related

Note that 10.8.x OS and below are not supported. Also note that the Roon Core is ideally installed on an SSD and will not perform well otherwise, even if you have a much faster system due to the databases need for speed.

Of course lesser spec systems can and do work but the user experience will not be as intended by Roon.

With such a nice audio setup it’s going to make a big difference I expect when you make the jump.

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