Years ago, Hans B introduced me to Allo products (DigiOne and USBridge) which turned cheap single-board computers with HATs into quality sound sources for my Meridian DSP speakers. USBridge featured their Sparky SBC instead of an RPi (but still running DietPi), which I continue to enjoy through a Singxer SU-6 DDC.
As time went on, I found that an RPi with digital input HAT could be used to import SPDIF signals (via Roon’s Extension Manager) into my HAF convolution engine room correction filters so that all digital sources, not just Roon network endpoints, could benefit. All of which means that I also have a 4b/8gb with input HAT running DietPi to handle various extensions (in addition to the 3bs).
I’ve prepared 3b RPi boards for neighbors using Volumio and PiCore Player, and still have three of them installed in Allo DigiOne, DigiOne Signature and USBridge/DigiOne Signature transports.
-Don’t blame me for today’s shortages.