8-inch wireless powered subwoofer.

14" H x 12" W x 12" D
35.56cm H x 30.48cm W x 30.48cm D



Available Finishes:
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Explosive Wireless Performance for Movies & Music

Enjoying home theater just became a lot more convenient, thanks to Polk’s new PSWi-8M wireless subwoofer. It’s wireless, so there are no cables to run across a room, and it’s compact size frees you to place the PSWi-8M where it looks and sounds best. How simple is the PSWi-8M? One power plug and you’re done.

The PSWi-8M is the perfect complement to high performance flat panel televisions with either audio or subwoofer outputs. Even more convenient, the subwoofer includes an additional USB power supply for those TV’s equipped with USB power options. In addition the PSWi-8M can be used with any component based home theater surround system. No matter what your setup, the PSWi-8M adds thrilling, high impact bass for a truly immersive home theater experience.

PSWi-8M Features:

The PSWi-8M wireless subwoofer is the perfect match for your RM Series compact home theater system or your SurroundBar® theater system. With it, you can add 70 Watts of serious bass impact to movies and games, with no cable-length limits on where you put it; the PSWi-8M has a powerful wireless transmitter that allows you to put it anywhere in your room (even inside furniture). It doesn’t call attention to itself, until it senses a signal and snaps to attention and you experience its big bass output!

Takes up less than a cubic foot of floor space: 12-inches W x 14-inches H x 12-inches D

For the deepest bass possible, the heavy duty, non-resonant MDF cabinet is internally braced and ported, and fires a Dynamic Balance® driver down toward your floor

The subwoofer’s flared port smoothes air flow, increasing efficiency and revealing accurate, musical bass.

Polk's exclusive laser interferometry material analysis actually tunes out unwanted resonance and distortion for pure, distortion-free sound.

By using a state-of-the-art Klippel distortion analyzer, Polk engineers can optimize the woofer’s motor structure, voice coil alignment and suspension, bringing you the best possible performance even at extreme listening levels.

The PSWi-8M transmitter comes with a "wall-wart" power supply and a USB power hookup for use with Mitsubishi Unisen and Diamond TVs.

All Polk products are made using the best materials and the most advanced manufacturing techniques. They pass the industry’s most exhaustive quality tests, including drop testing, extreme signal response and UV & salt exposure testing. Polk loudspeakers are built to perform for a lifetime.

Driver Complement

Diameter8" (20.32cm) 
TypeDynamic Balance Co-polymer driver with butyl rubber surround 


Total Frequency Response36Hz-250Hz 
Subwoofer Crossoverlow pass frequency set at 80Hz 
Inputs2.4 Gigahertz wireless transmitter sends data for LFE or Line Level connection 

Amplifier Specs

220V AvailabilityNo 
Amplifier TypeSubwoofer 
Continuous Power30 watts
Dynamic Power60 watts


Cabinet Dimensions
Height14" (35.56cm) 
Width12" (30.48cm) 
Depth12" (30.48cm) 
Enclosure Type
Subwoofer Enclosure Typeported, downward firing 
Product Weight (each)20.0 pounds


Unit of Measureeach 
Included Accessories2.4 Gigahertz wireless transmitter; USB power supply for TV's with USB power option 


Speaker Warranty5 years parts and labor (original purchaser) 
Subwoofer Amplifier Warranty3 years 

Specifications, dimensions and features subject to change without notice. For more information call us at 1-800-377-7655 (USA and Canada). Outside of North America call +1 (410) 358-3600.

PSWi8M Media

PSWi8m Accessories