Owner's Manual

Hear Sound FX Like Never Before
Dolby Atmos certified and DTS:X compatible, the Monitor XT90
reflects sound off your ceiling so you can enjoy the sound effects
and ambience found on the dimensional height channel offered
by these formats. Go ahead and duck, we won’t tell anyone.
Premium Polk Sound
Engineered by the same team the developed Polk Legend and
Reserve, MXT90 uses timbre-consistent components to deliver
detailed imaging, a seamless sound stage, and effortless bass
when paired with other Polk Monitor XT loudspeakers.
Pair with MXT20, MXT60, MXT70 or Wall Mount
Sold as pairs, the MXT90 height speakers can be easily placed
on Monitor MXT20 bookshelf speakers, MXT60 and MXT70 floor-
standing speakers, or wall mounted using their sturdy keyhole slot.
Works with Any Dolby Atmos or DTS:X AV Receiver
To use the MXT90 as a height channel, match it with any A/V
receiver (4 or 8 ohms) that provides a minimum of seven channels
and that supports the Dolby Atmos, DTS:X or DTS Virtual:X formats.
Features
• Dolby Atmos-Certified, DTS:X and DTS Virtual:X Compatible
• Add an Immersive Height Dimension to Movies, TV, and Video Games
• Place atop MXT20, MXT60, MXT70 or Easily Wall Mount via
Keyhole Slot
• 4” Dynamically Balanced Woofers for Clean, Impactful Sound
• Overall Frequency Response: 94Hz to 22kHz
• Nickel-Plated Binding Posts, Anti-Resonant Cabinet and Anti-
Diffraction Grille for Pure Sound
• High Sensitivity to Work with 4- and 8-Ohm AV Receivers
• Requires Minimum Seven-Channel Dolby Atmos or DTS:X
Compatible A/V Receiver
• Polk-Patented Quality Backed by Limited Five-Year Warranty
• Sold in Pairs
Monitor XT90 Dolby Atmos Certified
Height Speaker
Raise your home theater to new heights. The Monitor XT90 fits atop
the Monitor XT20, MXT60, MXT70, or wall mounts to enhance
movies and games in Dolby Atmos and DTS:X with dramatic 3D
sound. Hear planes flying overhead, special FX, ambience and
more for a truly immersive experience.
MXT90
height speaker
SPECIFICATIONS
Woofer 4” bi-laminate paper
Crossover Frequency 2700Hz
Recommended
Amplification (wpc)
30–100W
Impedance Compatible with 4- and 8-ohm outputs
Overall
Frequency Response
94Hz–22kHz
Sensitivity 89dB
Inputs 5-way nickel-plated binding posts
Dimensions
W x H x D
190.5mm x 143.2mm x 212.9mm
7.5" x 5.64" x 8.38"
Weight 6Ibs/2.72kg
www.polkaudio.com
Polk Audio is a DEI Holdings, Inc. Company. Polk Audio, Polk, are registered trademarks of Polk Audio, LLC. / Dolby, Dolby Audio, and the double-D symbol are trademarks of Dolby Laboratories Licensing Corporation. / DTS, Digital Surround, and
the DTS logo are registered trademarks or trademarks of DTS, Inc. in the United States and other countries. / © 2021 DTS, Inc. ALL RIGHTS RESERVED. / Other trademarks and trade names are those of their respective owners.
Consumer Benefits
Raise your Home Theater to New Heights
Whether watching a movie, playing a video game, or streaming
immersive audio via Apple Music, the Polk Monitor XT90 Height
Speaker will enhance your experience with dramatic 3D sound.
Dynamic Balance