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Polk® Audio Black Powered Subwoofer

Model #: MXT12_SUB-Black
Polk Audio
At a Glance

Monitor XT12 provides Polk’s loud, low, effortless bass so you can enjoy movies, music and gaming with more impact and excitement.

Available in Store Only
$349.00Save $NaN

Get to know this product.

More bass for your home theater and music

Monitor XT12 provides Polk’s loud, low, effortless bass so you can enjoy movies, music and gaming with more impact and excitement. Easily integrated into any home theater or music listening environment, and featuring new woofer, amplifier, and cabinet designs—the affordably priced MXT12 fulfills the Polk promise of great sound for all.

We make loud and low seem effortless

Polk has always been known for speakers that produce deep, powerful, effortless bass, and the MXT12 is no exception. A big, 12” Dynamically Balanced woofer in a ported cabinet, powered by a clean and ultra-efficient 100W Class A/B amplifier delivers bass as low as 24Hz, adding more punch and impact to your favorite music, movies and video games.

Built to withstand the rumble

When you want bass this loud and this low your subwoofer needs more than a great woofer and powerful amplifier to make it seem effortless. Monitor XT12 is housed in a critically braced MDF cabinet with a removable, precision-fit grille to isolate the sound of the woofer while minimizing unwanted resonances and sonic interference.

Add massive bass, seamlessly to your home theater

Monitor X12 features a consistently variable crossover, polarity and volume control to blend the massive bass it provides, seamlessly with your system. In addition, MXT12 offers line level, LFE, and nickel plated binding post inputs, ensuring compatibility with your receiver. Plus, the MXT12 is perfect for the modern trend of integrating two subs into your home theater, for even more bass, while smoothing out the low frequencies throughout the room.

Consistent sound throughout the series

The Monitor XT Series was designed with quality, timbre consistent components throughout to enable you to mix and match models to build your dream home theater or music listening set up. Matched components provide a unified sound field with seamless speaker-to-speaker blending for truly immersive listening experiences.


Misc. Specs

Product Weight39
Depth (in.)17.9
Width (in.)16
Height (in.)16.4
Speaker Connector Type5-Way (Universal) Binding Posts
Outdoor ApprovedNo
Speaker TypePowered Subwoofers
Frequency Response80Hz–160/LFE
Manufacturer Warranty5 Year
Color Finish NameBlack
Wifi CapableNo
Smart CompatibleNo
Airplay CapableNo
Bluetooth CapableNo
Subwoofer Size12"
WarningProposition 65 Warning for California Residents