ATC SCM11 thinking about a pair. Opinions.

I am going to ask for an opinion/thoughts (boy I asked for it now).

I am thinking of getting a pair of the ATC SCM11 for use in my office 12x14 Moon 240i a Moon 280D.

my main system is a 340i with the 260D and 280D SF Olympica Nova 3. 

@lonemountain. Thank you for your feed back.

Go for a used pair of 19’s if you can, version 2.

ATC is awesome!  Fantastic speakers.  
Really depends on what kind of sound characteristics you’re looking for.  They will sound quite different from your SFs if that’s what you’re after. 
b_limo2's suggestion is a good one.  I think overall more people who love orchestra, jazz, piano would like the transparency of the newer generation SCM 19's (the one in the curved box) because of the higher end drivers.   For those into rock music, pop music, radio or cinema the SCM 11 is the deal.  All ATC drivers are still hand made.
My theory on ATCs sounding better louder is simply that they're accurate so they sound more like live music the closer they get to the volume of live music.  Other speakers are less dynamically accurate but sound subjectively better at low volume.  

I wonder if there is a relationship between the ability to handle high volume and better sound at high volume.  What speakers sound great at low volume but can handle high volume?