12" Powerd Subwoofer

  • $299.00 EACH
  • Free ground shipping on all orders

PSW 505

Polk's PSW505 boasts a very sturdily built, slot-loaded enclosure — by reducing port turbulence and distortion, the Slot Load Vent sends out bass that fills your room and still retains detail and shape. Inside this enclosure, Polk's hidden a brawny 300-watt RMS amplifier, which powers the high-quality 12" long-throw woofer. The woofer's Hi-Roll foam surround gives the cone more flexibility for back-and-forth movement. This beast sends out a lot of sound!

The PSW505 doesn't stop there, either. Along with accurate lows for rounding out your music, and all the deep bass growl you crave for home theater, this sub offers flexible connection options and good looks. An unfiltered LFE input lets you maintain precise bass with your Dolby Digital home theater. Speaker-level inputs and outputs and a line-level input add to your options. And the cool styling, with silver details and a real wood veneer, is another popular touch.


  • video-shielded
  • slot-loaded enclosure
  • 300-watt RMS amp
  • 12" front-firing, long-excursion driver
  • frequency response 28-125 Hz (-3dB)
  • continuously variable 60-120 Hz crossover
  • unfiltered LFE input for 5.1 bass
  • line-level input
  • speaker-level inputs and outputs with binding post connectors
  • volume control
  • phase switch
  • auto on/off
  • 15-1/8"W x 16-3/16"H x 18-5/8"D

Dynamic Balance® Woofer Design

Polk perfected the method of analyzing a speaker's microscopic behavior with laser Interferometry. With that information in hand, Polk engineers select the ideal combination of materials, geometry and construction techniques to literally “tune out” unwanted resonance. The result is a subwoofer that delivers pure, distortion free deep bass.

Klippel Optimized Long Throw Woofer

Using a state-of-the-art Klippel Distortion Analyzer, Polk engineers optimized the woofer's motor structure, voice coil alignment and suspension for longer excursion and greater linearity bringing you the best possible performance even at the most extreme listening levels.

Slot Load Venting

Improves bass response. The wide, long slotted vent dramatically lessens turbulence, noise and distortion, pouring out a tidal wave of precise, thunderous bass!

Rock-solid MDF construction

(including a 1 inch thick front baffle) suppresses enclosure panel resonance for distortion-free, accurate response. Polk subs sound better because they're built better.

Customized Bass

Adjustable low pass crossover, phase switch and volume control allows perfect blending with any main speaker.


5 years woofer, 3 years amplifier

  • Tech Specs
  • Reviews
  • Q & A
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Tech Specs


  • Total Pieces
  • Height
    18.19" (46.2 cm)
  • Width
    15.13" (38.43 cm)
  • Depth
    18.28" (46.43 cm)
  • Magnetically shielded
  • Subwoofer Array Driver Enclosure Type
    Vented via slot loaded port
  • Subwoofer Array Driver Complement
    • (1)  12" (30.48 cm) d (Round) Front-firing, Dynamic Balance, High excursion polymer composite cone with hi roll surround, shielded - Subwoofer


  • Total Frequency Response
    23 Hz → 160 Hz
  • Lower and Upper -3dB Limits
    28 Hz → 125 Hz


  • Audio Inputs
    • LFE (Unfiltered)
  • Speaker Inputs
    (2) Pair of Pro-grade 5-way binding posts - Gold-plated


  • Power
    460 watts


  • Type
    Variable low pass
Q & A

Product Documentation

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