The MFL-6 is a multi-functional loudspeaker - it’s the one speaker that fits all. It can be used as L, C, R, surround or Dolby Atmos. The angled front panel makes it ideal for Dolby Atmos, and it also allows one to flat wall mount them and achieve the toe-in we highly recommend for all our speakers. The angled front panel also has the speaker angled up at you when used as the center channel in setups with a large screen and the center channel placed close to the floor. Our previous models - HB-1, HC-1 and HIW-1s will not have optimal imaging when wall mounted flat against the wall. We’ve also enlisted the inventor of constant directivity horn, Don Keele, to design the new horn. (The horns in the HB-1, HC-1 and HIW-1 were not his designs). Multi-functional design – Use as Left, Center, Right, Surround, or Dolby Atmos speaker with optimal imaging in any setup. Angled front panel – Allows flat wall-mounting with toe-in, ideal for Dolby Atmos or low-mounted center channels beneath large screens. Non-parallel front and back panels reduce standing waves. Constant directivity horn – Superior clarity and smooth response even when off-axis Flexible tuning options – Choose ported for maximum dynamic range or sealed for slightly deeper extension in smaller spaces. Premium build quality – Smooth satin black painted finish; unlike vinyl, used by many of our competitors. Optimized for use as RLC, surround, and Dolby Atmos applications. Don Keele-designed constant directivity horn. Variable tuning gives you more flexibility.  Port open: most dynamic range (louder and cleaner) Sealed: less headroom with earlier roll off but extends a bit deeper