Excellent sound quality. Handles lots of power. High efficenty +90db. Affordable.

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This is one great sounding sub. I've owned numerous subs including a Cerwin Vega V-MAX, Fosgate HX2's, Kicker CVR's and MB Quart DWE's. Polk Audio's MM154 blows them all away. The bass is extremely tight and accurate even in my vented enclosure. This sub shakes the whole car when cranked. I highly recommend using this sub only with a quality system such as an Alpine, Clarion or Nakamichi headunit and a quality power source such a JL, Crossfire or Diamond Audio. You won't find a better sub under $200.