PMCs are also studio monitors but they didn't work very well with my sugden. The PMCs were way too warm and not revealing enough for the clean sugden.
This is why I've avoided ATC so far, they look very hard to drive and I'm worried they may be too warm.
I think I'll have to give the Focal 1007 or 1008 a try as I really like the 816v and that is their bargain model.
I would not call ATC's warm, very revealing of source and can be a bit relentless over time, or at least that's how I felt about the ATC 19's I had.
That's why I compared Focals with ATC.