The Definitive Technology Dymension DM90 Integrated Height Module connects to the top of your DM70 and DM80 tower speakers and makes them Dolby-enabled. It features a 5.25" mid/bass woofer with a patented Balanced Double Surround System to produce better midrange detail, and a tweeter with an aluminum oxide design for explicit voice. This speaker also features a Patented Linear Response Waveguide that extends off-axis dispersion for total sonic immersion. The snap-in connection system provides easy and secure electrical connections to get this height module connected to the top of the tower speaker and bring Atmos soundtracks to life. Be it onscreen movie drama, melodies of your favorite singers, or hearing the sonic details while gaming, this high-performing module allow your towers to envelop you from every angle and transport you inside every scene and song. The consistent sound across Definitive Technology gives you the flexibility to mix and match Dymension, Dymension CI, and Mythos speakers, which can be voice-matched to design a complete home system.