Polk Audio Monitor XT12
Polk Audio Monitor XT12 Active Subwoofer Powered Subwoofer
- Long-throw, high-excursion 12″ Dynamic Balanced woofer for deep impact with low distortion
- Powerful and efficient 100W Class A/B amplifier for loud, clean, and responsive performance
- Smooth low-frequency extension down to 24Hz — perfect for bass-heavy music and movie action
- Fine-tune to your system with volume, continuously variable crossover (80–160Hz), and phase polarity (0/180°) control
100W
Class AB
100W
50W
39 lbs (17.7 kg)
16" (40.7 cm)
16.4" (41.8 cm)
17.9" (45.6 cm)
Left/right 5-way binding posts
80 Hz → 160 Hz
0/180
Yes
Single RCA
Black (vinyl)
12" bi-laminate paper (foam surround)
Bass reflex (ported)
Permantly installed feet
Maximize Your Enjoyment
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.
High resolution sound, effortless bass
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.
Solid Polk Sound
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.
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