12” 300W Subwoofer 

  • High performance subwoofer designed for large rooms and systems
  • Connects easily to any system with pro-grade, unfiltered LFE, line and speaker inputs
  • Unique design keeps the PSW125 stable, steady and power efficient, even at extreme volume levels
  • 399.95 Each

Add to Cart

  • 399.95 Each

Add to Cart

  • Free ground shipping on all orders

The Pinnacle of Bass

When it comes to groundbreaking bass, the PSW125 reigns supreme. Perfect for big rooms and big systems, this powerful subwoofer houses a 12” composite woofer driven by an intelligent amplifier producing 150W continuous and 350W at its peak. Enjoy smooth, musical bass to rival any live performance with the king of the PSW Series.

Dynamic Balance®

Unique driver materials, speaker geometry and construction techniques produce clean, crisp sound and effortlessly big bass, especially when you need it most.

Klippel Distortion Analyzer

State-of-the-art optimizations to the motor structure, voice coil alignment and suspension ensure the best, most efficient performance at all volumes.

Innovative Features

Smart circuitry, superior compression and an intelligent amplifier deliver highly efficient bass with low distortion and enhanced blending.

Expertly Crafted

Heavy-duty MDF construction ensures perfect volume and distortion-free low frequencies, while eliminating internal standing waves and performance-robbing resonances.

Unique Configuration

Specially-tuned, downward-firing ports produce maximum bass impact and keep the cabinet's front profile as sleek as possible.


PSW Series subwoofers blend perfectly with systems made up of other Polk Audio loudspeakers, such as TSI, RM and R/T/M Series speakers.

  • Tech Specs
  • Reviews
  • Q & A
  • Support
Tech Specs


  • Total Pieces


  • Electronics Warranty
    3 years
  • Cabinet Warranty
    5 years
  • Drivers Warranty
    5 years
  • Original Purchaser Only

Misc Equipment

  • Total Pieces
  • Availability
  • Orientation
  • Height
    16.5" (41.91 cm)
  • Width
    16.25" (41.28 cm)
  • Depth
    19.13" (48.59 cm)
  • Weight
    40.1 lbs (18.19 kg)
  • Subwoofer Array Driver Enclosure Type
    Vented, Downward Fring Port
  • Subwoofer Array Driver Complement
    • (1)  12" (30.48 cm) d (Round) Subwoofer - Tweeter

Audio Quality

  • Total Frequency Response
    32 Hz → 225 kHz


  • Audio Inputs
    • LFE (Unfiltered)
    • Stereo Line Level - (2) RCA
  • Ethernet
  • Speaker Inputs
    (1) Spring Terminals - na
Q & A

Product Documentation

Here's Where to Find Your Nearest Polk Dealer