Summary: this is a monster sub once you break it then when I first took it out the box and played it it sounds like crap. Give it some time play for about 2 hours a day for 2 weeks breakin nicely and you will hear the difference. My wall shakes and knocked out of picture frame of my wall when I was watching The Dark Knight movie.
Summary: Very nice. I bought this as I have a Yamaha receiver and it takes a standard configuration for the Powered Subwoofer. Unlike others this unit wires direct. It worked great and the sound is excellent.
Summary: When I unwrapped my new polk subwoofer I was thrilled with the smell of the dark and sweet rubber. When playing any music it sounded like the earths heartbeat in sync with all the people of the nations joined in unicen experiencing lifes joy and intimacy of connection. Come with me unto the forest my child and sing a sweet melody my love, this sub will cleanse your soul of all guilt and sin and wash mystic beats into your bones, until you feel the intense urge to get up...
Summary: Based on the single review of this subwoofer, I had to jump in here and say something. I bought this subwoofer based on 527 reviews on Amazon and never found a single negative comment that would lead me to "Stay FAR away"