I took a 1.5 hour drive to MKTheater's HT yesterday. James is a very nice guy! We had some tasty Mexican food and then went to his place. First of all, his fronts are ridiculous. They are real theater fronts - the kind in theaters seating 600. Each has 2 12s and a huge horn. They are close to 5 feet tall and 2 feet wide! He must be running these at less than 1% of what they are capable.
He has two Danley DTS-10s and 2 CS 18.2s for low end. He is sharing amps between the two subs so is only getting 1/4 power to them since he can't bridge them yet. He has just hooked up the CS 18.2s so hasn't gotten them sorted yet. I'm sure when he gets the proper amps for the CS18.2 he will have a ton of output...not that it is really lacking.
Anyway, it sounds great. My THT gets to about 15hz in my small room, but I think I can tell that his subs go a bit lower. His system sounds very balanced, clean and clear with a very smooth low end.