Speaking as someone who's use quite a few of Thilo's drivers... the TC stuff is simply excellent. The highest-end project I've ever worked on had two of the older-model TC 10" drivers and three of their 10" PRs per cabinet, with a Hemp Acoustics 8" coax (made by Radian) and a LCY ribbon tweeter per cabinet... the dual 10" TC drivers (powered by a 500w amp per cabinet) were capable of effortless output to far below 20 Hz, at near-dangerous-to-nearby-structures levels... without any audible distortion. I don't think I EVER got one of them to bottom out, even playing stupidly bass-intensive stuff like the Poulenc Organ Concerto in G minor (16Hz pedal tones!) and the like...
I'd seriously like to work with one of the LMS drivers, if I do another project like this one...
BTW: The three 10" PRs and the amplifier are on the rear...
Regards,
Gordon.