I note the 12mic (along with RME's latest multichannel AD devices) offers AD conversion optimised for impulse response. How does the frequency response compare to the ADI-2 Pro's different filters (slow, NOS etc)?

Have you got graphs to show performance at higher sample rates?

I assume these are design decisions that weren't available when earlier units (eg XTC, Micstasy) were built?

Thanks in advance.