I too am big fan of Final Audio. I have the M12+’s. I received them a few weeks ago and now they have ~150 hours on them and they sound in a word, TERRIFIC ! I have a modest listening space (10ft X 12ft) with the rear (behind my listening position) open into the kitchen area. I was impressed at first with the bass as they go to 48hz however sound robust right down to that area. They have opened up nicely in the ~150 hours and the mid-range and treble sound very transparent and fast. I have to agree with accousticrat34 with his assessment of these speakers. I also agree that the take a good while to break in. The distributor says ~350 hours for full break in. I’m less than 1/2 way there and I can’t think they’s sound any better than they do now. I have mine paired with an SVS Micro3000 subwoofer which I crossover at 50hz with a 24db/octave slope and -15db volume and it meshes very well with the M12+’s. For most of my listening I really don’t need a subwoofer to fully enjoy the music.
Another thing that has impressed me is the subtle nuances in the music that I hadn’t heard prior. I keep saying, "well I hadn’t heard that before" ! Like for instance instrument decay lasting longer than I’ve ever heard it on my other speakers. This was one of the best stereo equipment purchases I have made in nearly my whole life in "Audiophileville" (50+ years) If you have a small to normal size listening room, I believe the Model 12+’s would be just fine ! No need to go to the M15+’s or above, and I’d stick to the single panel ones as I don’t believe you’d need the models with the subwoofer unless you just want them integrated as a package. One more important thing... Ravi Velnati, the U.S distributor for Final Audio is a great representative of this product line. If you’re contemplating the purchase of one of their fine speakers, you should give him a call.