That's the one, mine are on stands. They came with a reasonably hi end system so I would guess were quite pricey, bit reluctant to let them go for silly money.
I doubt they are worth any significant money. They are not high end and I suspect may be a grade over 'White Van."
I have been on Google and eBay France.
The posts on forums are the same as yours: - "Has anybody heard of a2T speakers" and no one has.
On eBay France not one of their speakers is for sale.
I think they are a house brand of Cine Now, may be not even that.
If you like them at all keep them. You do not seem overly fond of them and they are likely junk.
I did find what I think is the mid bass driver and it is about 20 Euro.
I would say you will be lucky to get $100 out of them.