Was the EBS the thing that looked like ATC 100s but all the drivers were centred in-line and not offset as in ATCs?
I never heard them but always heard good things about them on other forums.
I think the Roger Waters ATCs were 100s with a bass unit which travelled a bit further than the standard SL...
Mark Knopfler uses 2 1/2 pairs of 200s (or something) (5 channel) with their subs in the Chiswick studio. I was fortunate to be invited there. The sound was amazing....no - staggering. the studio manager/ consultant Dave played some pretty standard stuff through a CD player that looked like a £400 Philips thing through a Pro DAC through a 1980s API fully discrete desk. If I could get a sound like that, I'd be soooooooo happy.