Definitive Technology Dymension DM90 Integrated Height Module for Dymension DM80 and DM70 (Pair)The Dymension™ DM90 integrated height module attaches to Dymension DM80 andDM70 bipolar tower speakers to provide upward-firing drivers that make the towersDolby Atmos-enabled. With DM90s attached to DM80 or DM70 speakers, you cancreate the Dolby Atmos-enabled and DTS:X speaker system of your dreams. Product Features:• Purpose-built add-on height modules for Dolby Atmos and DTS:X• Upward firing drivers bring Atmos soundtracks to life• Easy, quick, an