Originally Posted by tebling
On the other hand, if you have wood floors and like to feel your couch vibrate under you, then it might be a bit of a killjoy. I'm not sure what difference it would make on concrete, as I'm guessing the mass involved there already gives you a good deal of decoupling from the rest of your place (as opposed to a wood subfloor). Do a search - there are loads of threads on this topic already.
At the old house, the Turbo was sitting on slab-on-grade concrete (w/ carpet/pad) in the finished basement, and vibrated the seats plenty during some movies. This was with the Turbo against the right wall facing towards the rear of the room - there might be some pictures over in the Seaton forums or on various MFW threads here. The sub sat directly on the carpet - no Gramma or pads of any kind.
At my current house, it's on a carpeted, suspended wood floor above the crawl space. The sub is behind the seats in the right rear corner, facing left. There's definitely plenty of vibrations in the seats, and I rarely play the system at reference levels, usually between -10dB to -15dB. Some discs are more "subby" than others, of course. Pacific Rim was one of those movies where the Turbo was pounding out the bass so fiercely that at the end of the movie I was physically exhausted from being knocked around in my chair like it was a roller coaster ride...
And unlike tebling - with my basement media room location in my house and the adjacent house locations, this allows me to set the volume wherever I happen to need it. I'm quite lucky regarding this...
I wonder if adding a Gramma or some isolation pads at the corners of the sub might produce any noticeable improvements...hard to imagine the Turbo sounding much better than it already does! Maybe tebling will have an open house sometime so some of us locals can check it out his new gear? <cough, cough>