Add impact to your favorite movies and full-bodied bass to your favorite tunes with a sub that's barely larger than a cubic foot. The PSW111's high-current, 150-watt amp effortlessly drives an 8" woofer for dynamic low-frequency effects. And this compact subwoofer sports a new, more powerful driver design to deliver deeper, louder, and punchier bass than previous Polk subs. Special circuitry inside the amp and a solid MDF cabinet with internal bracings ensure clean, detailed lows, even when you crank up the volume.
From the review Polk PSW111 Ultra-compact Powered Subwoofer: From sub-par to sub-lime
"But the overwhelming sense I had from early listening was one of warmth. The low mid-range, the place where male voices, cellos, and trombones live, suddenly came alive. I could hear all this ambience I wasn't hearing before in movies and TV shows street noises, intakes of breath, footsteps. Sure, you could take this sub to the slamming max if you want, but the main takeaway I have from adding this component into my system is that things have been put into balance again."
Woody Sherman, Crutchfield A/V writer