Polk, Flagship 7.1.2 Dolby Atmos/DTS:X Soundbar system, Wireless Surrounds & 10" Sub -The MagniFi MAX AX SR sound bar system offers big sound with support for detailed multichannel formats like Dolby Atmos and DTS: X. The bar packs an impressive 11 built in speakers that direct sounds for greater immersion, including up firing drivers for overhead effects. A wireless subwoofer adds weight and impact to your movie and game soundtracks, helping you feel the action on screen. And wireless surround speakers produce true wraparound effects