Can just confirm to what Steve says - the ATV snare is a dual piezo snare.
If anybody wonders what Sabian63 refers to...here is the idea:
https://youtu.be/G7bNl7onPnk (If look carefully on how the three zones interact)
It is a box which converts 2 of total 3 Piezo triggers to switch type of signal...which makes it react as a Yamaha 3 Zone type of signal. We will see if there will be an official product.
If anybody wonders what Sabian63 refers to...here is the idea:
https://youtu.be/G7bNl7onPnk (If look carefully on how the three zones interact)
It is a box which converts 2 of total 3 Piezo triggers to switch type of signal...which makes it react as a Yamaha 3 Zone type of signal. We will see if there will be an official product.