As expected, the core architecture seems very similar to the 800X HD series. The front ends differ, of course, due to the 50 Ohm support in the 1000 series.
I am still puzzled by the dual ADCs. Why did Siglent splash out on those, given that the total sampling rate across all active channels is always 2 GSa/s maximum in the SDS1000X HD? Does this imply that the scope could technically run at 2*2 GSa/s (or 4*1 GSa/s) and is just throttled to keep the higher-end models differentiated?
It's the same for the 800X HD platform, of course. But I don't think we ever reached a conclusion there?