Arylic Up2Stream with Allo Piano 2.1 issues

[NegoNam]

Hey there,

(I'm from France, sorry if I make English mistakes )

I'm trying to do this DIY project but I'm not very familiar with some of the part's i'm using. I did not find anyone that has tried this specific setup before.
Here is the idea :

I want to use the Arylic Up2Stream Pro v3 as my main source for powered speakers to make them wireless. I'm going to make a pair of them, with an active crossover. (I want to use 1*up2stream and 1*Piano in each speaker, as the two Up2Streams can become a stereo pair)

1: Is it actually possible to use the Up2stream and Piano together ? (without a raspberry Pi)

2: If it is possible how exactly can I wire them together ?

3: About the DSP in the Piano 2.1, I'm planning on using it for the active crossover, by getting a mono signal from both Up2Streams and then splitting the signals into meds and highs, before sending them to the drivers. I hope the Piano's DSP can be programmed to do this. If so, I assume this is done through a raspberry Pi, as I don't think there is another way of connecting it to a computer.

Then, would the Piano 2.1 run with an I2s input from the Up2stream with the DSP program after being disconnected from the RPi ?

I would really like to know if all of this can work or if i'm forgetting something.

Thanks for your help !

WiFi&Bluetooth 5.0 Multi-room Stereo Receiver Board-Arylic.com
– arylic
Piano 2.1 DAC