Mazikrav
My setup is in my living room and would not be categorized as a "listening room". There is an assortment of random couches and so forth kind of in the way. The room is about 14x24ish and I have the speakers set up along one of the short walls. They are about 2 feet each way from the corners. My sub is about 40% of the way along that same short wall. It's an old NHT that I had kicking around. The amp for the NHT allows me to cut out the signal above 50/80/100 hz. I found 50 hz was the best setting. I listen about 10 feet from the speakers and have them toed in to cross about 3 feet behind me. Despite the furniture etc, there is a pretty clear path from the speakers to where I listen, so it works out well. My neighbor across the way is a bassist and jazz nut and I had him help me dial in the settings. It's possible bourbon was involved. I am not sure if I'd need a sub with a different amp. I'd be neat to hook up a big SS amp sometime and hear that.
I really like the way these sound. My neighbor and I go to the local jazz fest during one week in the summer and this year we would go hear a few acts and then do an "after event decompress" with my system and listen to some of the same acts we had just heard live. It's not "live" but its pretty good. That was before I put the sub in the mix, I can't wait to do it next year.
FWIW I'm also in the group waiting for grills...