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Polk Audio

Polk Monitor XT12 Powered Sub - 12" Dynamic Balanced Woofer & 100W Class A/B Amplifier, Low-Resonance MDF Cabinet & Removable Grille, Dolby Atmos & DTS:X Compatible, Midnight Black

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$349.00 Why this price?

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Availability: In Stock.
Fulfilled by Amazon
Arrives Saturday, Jun 21
Order within 10 hours and 35 minutes
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Style: 12" Subwoofer (XT12)


Features

  • POWERFUL SUB FOR EFFORTLESS BASS - The Polk Monitor XT12 features a long-throw, high excursion 12" Dynamically Balanced Woofer, powered by a 100W Class A/B Amplifier that delivers bass as low as 24Hz, adding more impact to your music, movies, and games
  • 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 speakers, and their stylish design blends with any home decor
  • DISTORTION-FREE AUDIO - The MXT12 subwoofer is housed inside a rigid, critically braced MDF cabinet with a removable, precision-fit grille that isolates the sound of the woofer, while minimizing unwanted resonances and sonic interference for pure sound
  • VERSATILE COMPATIBILITY & CONVENIENT CONTROLS - This subwoofer is compatible with the latest Dolby Atmos & DTS:X enabled AV Receivers. Fine tune the MXT12 to your system easily with volume, variable crossover (80-160Hz) and phase polarity (0/180) control
  • NUMEROUS CONNECTION OPTIONS - The MXT12 perfectly complements most home theater systems. Easily connect your receiver with this subwoofer via line level (RCA), LFE (unfiltered / low pass disabled) and nickel plated, 5-way binding post inputs
  • ADD A SECOND SUB FOR RUMBLING AUDIO The timbre matched Polk components ensures seamless speaker-to-speaker blending with other Monitor XT speakers. Add another same-model sub for more bass and uniform low frequencies throughout the room

Description

The Polk Monitor XT12 subwoofer is outfitted with a 12” Dynamic Balanced Woofer and 100W peak Class A/B amplification that deliver loud, low, effortless bass so you can enjoy movies, music and gaming with more impact, amazing speed and control even at 24Hz. Equipped with convenient, built-in controls for volume, variable crossover (80-160Hz) and phase polarity (0/180) control. The sub is housed within a rigid, low-resonance cabinet to provide clean, loud bass. Easily integrated into any home theater or music listening environment, and featuring new woofer, amplifier, and cabinet designs—the MXT12 fulfills the Polk promise of great sound for all. Add another, same- model subwoofer to your home audio set up to dramatically improve realism, smooth out peaks and dips, as well as to get an even bass response for all your movies and music.

Brand: Polk Audio


Speaker Maximum Output Power: 100 Watts


Frequency Response: 40 KHz


Connectivity Technology: RCA


Audio Output Mode: Surround


Mounting Type: Floor Standing


Material: Engineered Wood


Model Name: MXT12


Speaker Type: Subwoofer


Special Feature: Dolby Enabled


Recommended Uses For Product: For Surround Sound Systems


Compatible Devices: Home Theater


Subwoofer Diameter: 12 Inches


Unit Count: 1.0 Count


Surround Sound Channel Configuration: 5.1


Color: Black


Included Components: Speaker


Product Dimensions: 16"D x 18"W x 16"H


Item Weight: 39 Pounds


Impedance: 4 Ohm


Is Waterproof: FALSE


Number of Items: 1


Control Method: Remote


Speaker Size: 12 Inches


Power Source: Corded Electric


Woofer Diameter: 12 Inches


Water Resistance Level: Not Water Resistant


Audio Driver Type: Dynamic Driver


Subwoofer Connectivity Technology: Wired


Includes MP3 player?: No


UPC: 747192135058


Style: 12" Subwoofer (XT12)


Controller Type: Corded Electric


Manufacturer: Polk


Item Weight: 39 pounds


Country of Origin: China


Item model number: MXT12


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, Jun 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

    • My only problem is, that I will never be able to max it out 😭
Style: 12" Subwoofer (XT12)
Legit amazing! 10/10 Price was perfect, would 100% buy again! 🥰 But warning for people who live in apartments, if you’re not careful someone is definitely going to complain. Unless your goal is to get people upset, then ignore this warning because this will work for that 😂 Also if you roll up like a foam soundproofing wall panel, and put it in the rear port (but not like fully blocking off the port though), it will make it a bit punchier. Not that it needs that to be done in anyway, but if you’re having this in a small room then doing that helps in ways that I can’t explain with words. It easily connected to my PC via optical output, which goes to an optical splitter. Then the optical branches off to my soundbar optical input and my GoXLR optical input. Then from the GoXLR I use the 3.5mm line out, converting to over to RCA into the subwoofer. This allows me to get perfect, easy and independent remote volume control of the subwoofer via the GoXLR sliders, while still having a master control on the PC that will adjust both the soundbar and subwoofer at the same time, resulting in perfectly fine tuned sound quality with absolutely no distortion. ... show more
Reviewed in the United States on May 10, 2025 by Miah
    • Excellent for the price
Style: Surround Speakers w/ 5.25" Woofer - Pair...
I'm NOT an audiophile so please take this all with a grain of salt. But to me these speakers sound fantastic for the price. I paid $129 for a pair of "like new" speakers that actually appeared to be brand new. So that was nice. I've had them playing for two hours now and I'm very impressed. Surprisingly robust bass. If you live in a small apartment, or you're just not a total basshead, you don't need a sub. These things have a real kick! The sound is crisp and clear, I'm hearing dialogue that I've never heard before. Finally, the power. I'm using a STR DH790 and these things will go as loud as I could ever want. They fill up the room with beautiful noise. In short, for the price I think these are excellent. ... show more
Reviewed in the United States on May 8, 2025 by Sam Hiced
    • Excellent speakers for ATMOS "If you know what you're doing".
Style: Hi-Res Height Speaker (XT90)
Excellent ATMOS speakers for the price. They can be mounted as Upfiring to reflect off of the ceiling; sitting on your towers, or wall mounted facing toward the main sitting area; as front height speakers. If you know what you're doing, these speakers will work for you and your ATMOS. If your ceiling is more than about 9 feet, upfiring speakers don't work well. Bouncing off of a ceiling takes some acoustical physics. But if your ceiling is less than 9 feet (like a basement theater room) then these can be a decent option. I actually use 3 sets of speakers for my atmost. These plus 2 other different brands. ALL 3 sets are up firing, but these polks sit on my towers, the other 2 pairs of speakers are mounted close to the ceiling on an entertainment wall unit. They still reflect off of the ceiling, but they are only inches away from the ceiling. (For those concerned, my receiver only has output for 1 pair of atmos speakers. My other 2 pair are 8 ohm speakers. I put them in parallel to give me 4 ohms; then these polks are 4 ohms so I put them in series with the other two that I've connected, and now I have 8 ohms again). Definitely worth buying if you have low ceiling OR if you're going to mount them at the wall/ceiling and point them down. ... show more
Reviewed in the United States on April 5, 2025 by Mike
    • pricey but quite effective
Style: Slim Center Channel Speaker (XT35)
i had the energy 5.1 speakers. they did ok but i found myself constantly turning on closed-captions for clarity. energy was purchased to comply with a request - someone didn't want to see speakers in the family room. seems sacrilegious but fine. it's been well over a decade now and the lack of clarity was driving me nuts. in my opinion, centers don't have to work that hard especially, if the system includes a powered thumper. course, if you're a 'phile, you're likely throwin' up bout now. know that these comments ain't for you folks, k. i look for strong and clear audio from my center. this xt35, kills it! it's super pricey now but this center is the cat's meow! in fact, i bought it on a goof. i had just replaced the front surrounds with a pair of polks. it's embarrassing but they're behind a drape. same deal though, the energy's were a joke. these surrounds brought additional clarity and volume, i didn't think was possible. still, most of the dialog is channeled to the center. rarely use the captions now. full disclosure, none of these speakers were plucked off the vine. i'm out of pocket like most, if not all here. still, it's a very good buy! ... show more
Reviewed in the United States on March 24, 2025 by g - raleigh burbs
    • Good Option for Stereo Speakers
Style: Surround Speakers w/ 6.5" Woofer - Pair ...
Got these speakers to replace some older bookshelf speakers in a vintage stereo system. I read a lot of reviews about current budget bookshelf speakers and settled on these for their solid base and effective high end. They have that and the midrange was better than expected. I don't normally crank them too high, but they are able to be played a bit loud and they hold true at all volumes that I've tried. I was surprised how warm they are too. They have a nice retro look to them and the build quality is very good. Particularly if you can pick them up on sale, these Polks are a nice option for stereo speakers. ... show more
Reviewed in the United States on May 5, 2025 by Gary in Illinois
    • Improved Sound
Style: Surround Speakers w/ 6.5" Woofer - Pair ...
Review Image by Steve807 Steve807
I’m very happy with the sound of the XT20’s. I purchased a turntable with a built in amp with external speakers and wanted better sound and this worked out great. I have increased bass and treble. I was concerned if the low power amp built into the turntable would have enough power for these speakers but I actually have more volume than before. These speakers are brighter and have more low end than the stock speakers and it’s what I wanted since the amp in the turntable does not have bass or treble controls. Highly recommended these speakers. I added foam isolation pads under the speakers which I also purchased through Amazon. ... show more
Reviewed in the United States on May 6, 2025 by Steve807 Steve807

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