The mk2s are supposed to have a deeper bass (partially due to the filter), but that’s never mattered much to me. Processing in ableton has always sorted that out for me. I’ve been meaning to try the A4 as an fx box on a mixer send. Once winter hits, I should have some time to try a few different setups.
Elektron is great about releasing updates, I’m sure there’s DT2 will see several. I’m hoping for some additional machines on the ST in the near future too. Doing something with the useless modifier function would be nice too.