Powered 12" Subwoofer

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!.

• 12" Dynamic Balance® driver
• Class D amplification
• Bass response down to 23 Hz
• Slot load venting
• Klippel-optimized

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!