This woofer is cheaper than most BOSS, LANZAR, PLANET AUDIO, and SOUND STORM LABS... Don't let that fool you, this driver has much higher quality parts (aluminum coil former for instance, not kapton- like most other cheap subwoofers. Thats a sure sign of cheap parts throughout the rest of a subwoofer) and construction than anything the other cheap companies offer- for more money. Got one of these running on about 500 watts RMS on a Sherwood stereo integrated amplifer (120RMSx2@8ohms, and 240RMSx2@4ohms) in my home theater. It is in a 5.5 cubic foot box that is tuned to 28 hertz that was built for me by Custom Sounds NW, and it shakes my entire house! Sounds clean as can be, gets insanely low, and the response is great even with the upper bass notes as well. Overall, its probably the best sub for the money in its price range. Audiobahn lost a lot of popularity with people over the years, but dont let them tell you otherwise... This is a great sub!