Both two-channel (primarily) and 7.1 HT (a bit). I was not in the market for monitor speakers at the time I happened on the recent blockbuster M22 sale, and thus did not compare them to Dynaudios or Paradigms (which, like other Revels, I have heard in different settings in the past). I know you have posted for comparisons among Dyno's, Paradigms and the M22s (along with perhaps DALI?), but cannot yet provide you with those insights. I may have that opportunity soon. That said, these are truly incredible speakers and (as demonstrated by my purchase) I would not hesitate to buy them even absent extensive cross-brand comparisons. There are very few speaker brands or lines about which I would issue such a remark.