Gosta, i think the IB 2S is a superb speaker. You'll for sure adore the fast punchy bass. It's no boom but full of detail. Actually, in an A/B, they would hammer my MM 27. Overall it's probably a better speaker.
Ofcourse, i drove these with Krell FPB 600c, Plinius SA-102, Classe CP 47.5 pre and Krell FBP 25SC. Stand alone cdp was Meridian 588.
I sold the Krell combo and bought FPB 700C, KCT and KPS 28c.
The cdp was not to my liking. I should have had my Wadia instead in this combination. I sold all my hifi and went clean for a few years. I was tired of the sickness. Never ending quest and it went too far.
When i began again i bought Monitor Audio PL 300, Jeff Rowland Continum 500 and Wadia 381. I couldn't stand the tweeter of PL 300. It was simply to much focus on this region.
I felt a need to go as minimal as possible to avoid hifi hysteria.
So i bought MM 27 and used it with my Wadia.
But again, PMC's best speakers are IB 2S and MB 2. But MB 2 demands a room of size. MM 27 is easier as it allows a more near field. I think with PMC's, you should have 3 meter.