I've never heard a bad Dali speaker. Always supremely involving and musical.
I tried the original Ikon 1s briefly on loan and I loved their holographic imaging and beautifully open treble and upper midband. They just lacked a touch of weight for some of the music I listen to but I would imagine the larger 2s would correct that issue.
Marantz is always a good partner for Dali. However, I've also had success pairing Dali speakers with NAD and Rotel where the additional punch seems to really suit the speakers.