This location Allo revolution DAC test/evaluation firmwares available for testing.

http://3.230.113.73:9011/Allocom/Revolution/Firmware/testing

Firmware testing folder for initial evaluation , Release folder will add later for the actual product.

firmware is xxxxx.bin file, this file can be downloaded to Revolution dac throuh USB cable ( Host system like PC or RPI and DAC connects using USB cable).
Host system can be with windows OS or Linux system or Raspberrypi

tools info:
http://3.230.113.73:9011/Allocom/Revolution/Firmware/utility-tool

proceedures will be updated in respctive OS folders.