I have a functioning fireplace between my speakers that juts out a little, but the listening room is our living room in a 122 year-old Victorian, so I deal with it by bringing out the speakers a bit and moving plants in front of the fireplace to cut down on relections (there's a glass front for the fireplace, and marble around the front). When I have a fire, I don't mind moving the plants, my speakers have rear-firing tweeters that actually sound better with a bit of reflection from the fireplace. The biggest problem the fireplace has caused me is that since all my front end equipment is in an adjoining room, and I don't want a 40 foot speaker cable run to get to the speakers (because I'd go broke since I have to tri-wire the satellites and run a separate cable for the woofers), and my wife doesn't want a stereo amp and crossover sitting in front of the fireplace, I have everything set up as mono for each channel, which means two separate dedicated lines, with two active crossovers and two pairs of amplifiers set up on each side of the fireplace. Maybe at some point I'll get some more conventional speakers and only need one pair of monoblocks; or maybe I'll move and get a dedicated listening room. It's nice, though, in the winter listening with the lights out watching the fire.