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Polk Audio

Polk Monitor XT90 Hi-Res Height Speaker Pair for 3D Sound Effect - Dolby Atmos-Certified, DTS:X and DTS Virtual:X Compatible, Surround Sound Speakers, 4" Dynamically Balanced Woofer, Midnight Black

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Availability: 11 left in stock
Fulfilled by HAWTHORNE
Arrives Saturday, Mar 21
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Style: Hi-Res Height Speaker (XT90)


Features

  • HEIGHT SPEAKER PAIR FOR 3D AUDIO - Add an immersive height elevation to movies, music & games with Polk Monitor XT90 Dolby Atmos speakers. Features a 4" Dynamically Balanced Woofer that enhances special FX for a multidimensional listening experience
  • PREMIUM BUILD QUALITY AND MODERN DESIGN - An upgrade to the critically acclaimed Monitor series, the Polk Monitor XT series features latest innovations in affordable, great sounding home audio speakers; their stylish design blends with any home decor
  • ENJOY PURE SOUND - Acts as a ceiling channel when paired with any AV Receiver (minimum 7-channel) that supports the Dolby Atmos, DTS:X and DTS Virtual:X enhanced content for home theater. Compatible with 4- and 8-Ohm amplifiers and receivers
  • EASY SETUP & VERSATILE PLACEMENT - Sold as a pair, the MXT90 height speakers can easily be placed on top of Monitor MXT20 bookshelf speakers & MXT60 & MXT70 floor-standing models. They can also be wall mounted using their built-in keyhole slots
  • CREATE AN AFFORDABLE HOME THEATER - The timbre matched Polk audio speakers ensure seamless speaker-to-speaker blending. Use with pairs of MXT70 towers, MXT20 bookshelves, with MXT30 center, and a MXT12 sub to create a unified surround system

Description

These surround speakers deliver an extraordinary cinematic surround sound in an immersive, enveloping soundstage with the Polk Monitor XT90 height speaker. Featuring a 4" Dynamically Balanced Woofer, this speaker delivers hi- resolution, dramatic 3D audio and enhances your movies, music. With high sensitivity and 4 & 8 Ohm compatibility, the MXT90 delivers realistic sound from nearly any amplifier or receiver—including the latest Dolby Atmos and DTS:X surround sound AVRs. It is Hi-Res Audio Certified, and Dolby Atmos and DTS:X compatible. 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 speakers using their sturdy keyhole slot. This model suits audiophiles and home theater enthusiasts. Elevate any home configuration and get extraordinary sound reproduction from any part of the room.

Brand: Polk Audio


Speaker Maximum Output Power: 100 Watts


Frequency Response: 40 KHz


Connectivity Technology: Dolby Atmos


Audio Output Mode: Stereo


Mounting Type: Wall Mount


Material: Wood


Model Name: MXT90


Speaker Type: Height Module


Special Feature: Dolby Enabled


Recommended Uses For Product: For Surround Sound Systems


Compatible Devices: Home Theater


Subwoofer Diameter: 4 Inches


Unit Count: 2.0 Count


Surround Sound Channel Configuration: 5.1


Color: Black


Included Components: Speaker


Product Dimensions: 6"D x 7"W x 8"H


Item Weight: 6 Pounds


Impedance: 4 Ohms


Is Waterproof: False


Warranty Type: Limited


Number of Items: 2


Control Method: Remote


Wireless Communication Technology: Bluetooth


Speaker Size: 10 Centimeters


Power Source: Corded Electric


Signal-to-Noise Ratio: 70 dB


Woofer Diameter: 10 Centimeters


Tweeter Diameter: 10 Millimeters


Water Resistance Level: Not Water Resistant


Audio Driver Type: Dynamic Driver


Audio Driver Size: 10 Centimeters


Subwoofer Connectivity Technology: Wired


Series Number: 10


Specific Uses For Product: Home Entertainment Systems


UPC: 747192133382


Style: Hi-Res Height Speaker (XT90)


Indoor/Outdoor Usage: Indoor


Global Trade Identification Number: 82


Manufacturer: Polk


Shape: Rectangular Prism


Set Name: Pair


Item Weight: 6 pounds


Item model number: MXT90


Is Discontinued By Manufacturer: No


Date First Available: August 24, 2021


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Mar 21

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Looks good and great features/sound for the price
Style: 10" Subwoofer (XT10)
This sub is great for the price. Get it on black friday and save some money. Most of the equivalent subs of this size are 300+ bucks. A little misleading though, measuring from the edge of the rubber from one side to the other side of the speaker is about 8 inches not including the 1/4 in area for the screw holes. So to me this is more of a 8” sub and overall is the size of yamahas 8” sub. Not complaining though, i do like the more compact size as subs used to have huge heavy boxes in the past. This one says 23lbs so not bad overall. Its your typical black vinyl veneer look and comes with power cord and instructions. Basic controls are power switch, phase switch, volume, low pass filter and the lfe or stereo rca jack inputs. Most people will like the phase switch at 0 as it matches their other speakers phase, but i say try both ways and see what you like. Thats it and its simple and perfect for entry level sound systems. You will need a sub cable which is a single rca male to rca male. Im using it for my computer and have a douk ampapa 300w amp with upgraded muses 02 opamps and sony cs5s that i purchased a few black fridays ago at a great price. The ampapa amp has a mini 3.5 jack output and using the polk lfe rca input. The polk has an adjustable low band filter so will cross this sub over at about 80hz as to me thats the cleanest sounding xover point. Anyways, overall if you want a lower cost decent sound for your stereo or even computer or tv, this setup is great for a small to medium size room. Review for height monitor x190, got these on black friday as well. I have 6 wharfedale diamond bookshelfs and center with a sub for my main tv hooked up to my onkyo rz50. It has outs for atmos height so after reading reviews got this on black friday sales. Overall a very simple maybe 3 inch full range driver in an angled mdf box. It has a nice grayish color grill and speaker posts that accept wire or banana plugs so simple install. I need to se up my dirac live settings then will update review. Other then that. Speaker looks fine in quality but super simple design so get them on sale. ... show more
Reviewed in the United States on November 18, 2025 by Maleko
    • Great Speakers For The Price
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These are my second set of Polk "Tower" speakers. The first set are multiple 6 1/2" drivers which I use for home theater front surrounds. Look: These are high quality. They sound fantastic. But (IMHO) they are basically large bookshelf speakers. In a small room, they have great definition and I think the pair of passive radiators improve bass immensely compared to a single ported enclosure woofer/driver. But look, a large room and loud volumes, need way more than a 6 1/2" speaker. It isn't a quality or spec issue - it's physics. Speakers move air and the amount of air they can move is directly related to speaker size. For the money, Polk speakers are a value. However, choose according to room size and intended listening levels. Small speakers (Under 8") work well in small rooms. Small speakers work for quiet volume levels. In terms of quality and fit for purpose, would buy again. - - - Having said all of this, would these speakers and a decent Center Channel Speaker be a Home Theater improvement over a sound bar. Absolutely. ... show more
Reviewed in the United States on December 27, 2025 by Andy
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Reviewed in the United States on February 4, 2026 by samdrucker
    • Decent speakers. Not great speakers.
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Got these on a great sale price otherwise would give 3 stars. Have a pair of Polk monitor 4’s from 1989. Still love those speakers. Thought these would be similar. Yep, they’re not. Decent base, but lacks highs and mids are muddy. Not sure I’ve ever found this with other speakers - but these sound better louder. The build quality also is not great. They look decent from a distance but close inspection equals poor joins and seems. The grill covers are flimsy. Sort of the story with this entry price point these days. I also recently purchased a pair of klipsch with same size woofer but with their horn loaded tweeter. At list price they and the Polk are pretty close. If they’d been same price I’d paid I would be retuning the polls. The polks have ended up in my workshop and the klipsh in my office. Maybe that helps describe the difference. Loud and muddy in the shop. Bright and bassy in the office!! ... show more
Reviewed in the United States on December 31, 2025 by brad
    • Incredible Value, Very Impressed!
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One word, value. I have an SVS-1000 and I get similar bass quality from this Polk XT10. I’ve been very impressed with this sub. Fits perfectly under the desk, works perfect with my NXZT pc speakers. Excellent power, ease of setup, sound quality, range, durability, and looks modern and professional. Love Polk. My main living setup has been Polk for years now. You go Polk! ... show more
Reviewed in the United States on November 11, 2025 by Ryan Smith
    • Polk Audio Home Theater System Review Blown Away!
Style: 12" Subwoofer (XT12)
Review Image by Brandon C. Brandon C.
Let me start by saying I never leave reviews. But after finishing my dedicated theater room and firing up my Polk Audio setup, I had to make an exception. Simply put: I'm blown away. My system includes: 2 Polk XT70 Towers 2 XT30 Centers (yes, two centers, and clarity is unreal) 2 OWM3s for rear surround 1 XT12 Subwoofer Powered by a Denon AVR-S570BT I spent around $1,200–$1,300 on this setup, and it performs like something three to four times that price. I tested it with everything from Star Wars, Top Gun: Maverick, Mission: Impossible, Transformers, and the full Marvel catalog. Every explosion, orchestral swell, and whispered line is crisp, dynamic, and immersive. The sub hits hard when needed, and the highs and mids are perfectly balanced. Dialogue clarity is exceptional, and music playback is just as impressive, with a wide soundstage, tight bass, and clean highs. As someone working in film and television, I use this system to review projects before sending them to streaming platforms. It gives me confidence that our audio is tight across all frequencies and plays beautifully on real-world systems. If you're looking for a budget-friendly, high-performance setup, get yourself a Polk system and pair it with a Denon AVR. Trust me, you won’t be disappointed. The smile on my face during the first listen said it all. ... show more
Reviewed in the United States on June 30, 2025 by Brandon C. Brandon C.

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