The Dymension™ DM90 integrated height module attaches to Dymension DM80 and
DM70 bipolar tower speakers to provide upward-firing drivers that make the towers
Dolby Atmos-enabled. With DM90s attached to DM80 or DM70 speakers, you can
create the Dolby Atmos-enabled and DTS:X speaker system of your dreams.
• Purpose-built add-on height modules for Dolby Atmos and DTS:X
• Upward firing drivers bring Atmos soundtracks to life
• Easy, quick, and secure plug-and-play installation
• Aluminum oxide tweeter produces crisp, sparkling highs
• 5.25” BDSS™ driver provides balanced sound, wide listening area
• Timbre-matched with other Definitive Technology speakers
• Accommodates Dymension™ DM80 and DM70 bipolar tower speakers
• Understated design so the speakers virtually disappear into the room
Purpose-Built Add-On Modules
An upward-firing mid/bass woofer and tweeter project sound toward the ceiling
where it reflects back to you, providing a sense of height that translates to a more
immersive listening experience.
DM90 connects easily to Dymension™ DM80 or DM70 bipolar tower speakers.
The speakers and the height module feature a snap-in connection system that makes
electrical connections and secures the height module to the top of the speaker.
BDSS System and Linear Response Waveguide
DM90’s 5.25” mid/bass woofer features our patented Balanced Double Surround
System™ technology. BDSS improves midrange driver excursion and provides a
wide, uniform soundstage with seamless mid/bass integration. A Linear Response
Waveguide™ extends and smooths off-axis dispersion for great sound everywhere
in the room.
Aluminum Oxide Tweeters
DM90’s rigid, well-damped tweeter utilizes a new aluminum oxide design that
provides smooth extended response with crisp transients and exceptional definition,
for lifelike realism whether you’re immersed in a movie or your favorite tunes.
Consistent sound across Definitive Technology series gives you the flexibility to mix
and match Dymension™, Dymension CI, and Mythos speakers to design your dream
home theater and whole-home system.
Dimensions (H × W × D)
6.0 × 7.3 × 15.3 in.
152 × 185 × 389 mm
Weight 10.1 lbs (4.6 kg)
Grille Material Acoustically transparent black cloth (not removable)
Tweeter (1) 1 in. aluminum oxide dome
Midrange/Midbass (1) 5.25 in. BDSS™ with Linear Response Waveguide™
81 Hz–30 kHz (-10dB)
130 Hz–27 kHz (-3dB)
Nominal Impedance 4Ω (8Ω compatible)
Sensitivity 90dB (2.83V/1m)
Recommended Amplifier Power Rating 25–100W
Certifications Dolby Atmos