This product is a vintage Polk model and is not available for sale, but it may still be available in some stores as a closeout or used product. The following text is taken from the original sales brochure for this product and does not reflect current availability. If you happen to have any question or concerns about this product, or any other Polk Audio product, feel free to contact our Customer Service Department at 1-800-377-7655 Monday - Friday, 9am - 5:30pm EST


Magnetically shielded powered subwoofer.

Available Finishes:

Explosive Performance For Movies And Music

The PSW450 is designed for mid-sized to large rooms and makes a great addition to large home theater or stereo systems. It shakes out all the thrills and chills in your favorite movie soundtracks, and its accurate musicality will make you sit up and take notice whether you listen to Lenny Kravitz, or the London Symphony Orchestra.

  • Big 12-inch direct radiating subwoofer driver for deep bass
  • Magnetically shielded for safe placement near TVs
  • High current power amplifier
  • Auto on/off circuit that automatically turns your subwoofer on when it senses a program signal. When no signal is present, the amplifier turns off within 15 minutes
  • Unfiltered LFE input for use with low pass filtered subwoofer output jacks
  • 5-way binding post speaker-level inputs and outputs
  • Switchable 80Hz hi-pass filter

Driver Complement

Diameter12" (30.48cm) 
TypePolymer composite driver 


Total Frequency Response25Hz - 160Hz 
Upper -3dB Limit125Hz kHz
Lower -3dB Limit35 Hz
Radiation Patterndirect 
Subwoofer Crossoveradjustable, 80Hz - 160Hz 
Inputsspeaker, line, LFE (unfiltered) 
Outputsspeaker level (high-pass filtered at 80Hz) 

Amplifier Specs

Bandwidth30 - 200 
220V AvailabilityYes 
Continuous Average Output
Amplifier Type
Dynamic Power300 watts


Cabinet Dimensions
Height17 1/2" (44.45cm) 
Width15 1/8" (38.42cm) 
Depth19" (48.26cm) 


Unit of Measureeach 
Total Shipping Weight45.00 pounds


Speaker WarrantyLimited, 5 years parts and labor 
Subwoofer Amplifier WarrantyLimited, 3 years parts and labor 

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.

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PSW450 Media

PSW450 Literature

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PSW450 Accessories