Roon Core Machine
Windows 11, Threadripper 2, 128GB RAM, 4090 RTX
Networking Gear & Setup Details
Cat5 Ethernet to Hyperoptic router and Cat8 to ultraRendu
Connected Audio Devices
USB cable to Ayre QX-5 Twenty DAC with DSD512 Native upgrade
Number of Tracks in Library
Description of Issue
I’ve acquired an ultraRendu with the Little Green Computer branded power supply. The chain is:
(MacbookPro M1 Max or Windows 11 with 64-thread Threadripper 2, 4090 RTX and NVME 4x running Roon core+HQP Server) → Eithernet → router → Ethernet Cat8 → ultraRendu → Ayre QX-5 DAC with a “USB2” upgrade that should be capable of DSD512 native
Switch on the DAC, switch on ultraRendu: the DAC shows USB DSDx8 (good sign, never did that when connected to MacMini)
Add Roon Ready and HQP NAA to ultraRendu as apps
3a. Leave Roon Ready settings as is without setting Native DSD
4a DSD DoP plays up to DSD256
3b Set Roon Ready to DSD Native
4b DSD as option disappears completely from Roon ultraRendu and it all is upscaled to 768kHz.
3c Now pick HQP NAA on ultraRendu
4c Connect up Roon to HQP on the same machine.
5c Set SDM pack to none and max 48x512 with 48 bits set or 44x512 (either)
6c The playback never starts and gives up after about 11 seconds. Subsequent opening of HQP settings results in HQP dying.
3d Use DoP DSD256 on HQP, it all works well.
I can post any printouts from the DAC diags or from RoonReady diags on SonicOrbiter if that could help.
Sorry for a long post but can anyone help please?