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The USBridge is a bit more on the warmer side wherein the digione us more neutral. But since I use the same DAC, it could be that difference possibly. I am happier with the USBridge though I am restricted to only ethernet interface as the Allo tweaked RPI board is minimalistic.Which do you prefer? Does the USBridge resolve better due to the higher sample rate?
I have had issues similar to @jls001 on my USBridge. There were nightmarish crashes when I was using a local hard disk. I have since moved to an NAS connected via wired Ethernet and there have been no crashes thereafter. However, Volumio sometimes forgets the existence of a music library and needs to be updated all over again.
Bughead had been too cumbersome as an audio player so I had reverted to using foobar till I stopped using PC as player. Now I use Volumio player on an Allo Sparky. Audio quality is very good (better than my highly tweaked PC+player) but it is also buggy (inexplicable lost connection to NAS despite using wired Ethernet, and very slow library update due to the low horsepower of the processor) but one doesn't have to through the "rituals" of Bughead.
These issues are gone with the latest builds and to let you know that having tested a Allo USB + Sparky side by side of a Allo Digione + RPI3, the later option had below advantages
Lastly the issue with forgetting library happens in my observation mostly when you did not allow adequate time between powering up your network share
- RPI is 3 -4 times faster than Sparky in finishing the library scan
- Digione (not the signature one) sounded better to me than the USB Bridge
- You can change a variety of OS options
- The age old volumio image on the Sparky has the following issues
- hangs or halts library scanning if it meets a filename it cannot digest
- does not support TIDAL plugin
The challenge I have is to decode MQA files in the USBridge so that the DAC can render the same. Typically (at least the Gustard and Topping) can only render MQA via the II2/LVDS input. They can, however, decode and render via the USB (X216) input but I intend to keep the USB input free (with a cable connected) for use with my laptop should the occasion arise. This way I save myself the trouble of going behind the DAC each time I need to switch inputs (between streamer and laptop) to the DAC.
Have you compared the RPi 3 and 4 with the USBridge Signature?