Hi I'd like to clarify that if I purchase this item I will be able to use it as 4 independent channels (with a program such as Pure Data or Supercollider, which have multichannel capability allowing a user to run audio to discrete channels) on an Pi 4. One of the posts here suggests it can be used only as 2 duplex outs.
In addition, if you would please clarify the exact power specifications (12-24V, but how many amps? Will a 24V/5a supply be acceptable?) required, it would be helpful.
Finally, the project I would be using this for will be in operation for a number of years, and it would be useful to know if this product will continue being developed or if it is effectively discontinued. (I would prefer not to be hunting for deadstock in two years if one of the hats malfunctions.)