It has a square surface giving it a larger surface area to let out sound, compared to conventional round subwoofers. This 1200-watt subwoofer KICKER is one of the best 10-inch car subwoofers of the day. It is a master piece not only in its design but its overall performance. The Rogersound Labs Speedwoofer 10S 10-inch subwoofer is a refreshing surprise for those who think subwoofers are nothing but big, ugly boom machines. Kicker might have been the way to go 10-15 years ago in small sealed enclosures ( the original round Solo's,Comps,Xpl's Credence built) but the Comp/CVR is below average in small sealed apps,if you want to go Kicker sealed… i had a Dayton reference series 10 in a sealed box… Best Shallow-Mount Subwoofer … It sounds great with both music … MB Quart DS1-254 Discus Shallow Mount Subwoofer (Black) – 10 Inch Subwoofer, 400 Watts, Car Audio, 2 Inch Voice Coils, UV Rubber Surround, Best in Sealed Enclosures 4.6 out of 5 stars 108 $56.75 Im getting a nice flat response in software from 32-90 hz, and the box is so goddamn small it was a challenge to fit the driver in there the way I want (I want the motor in the sealed section in case there is some motor noise on these). I’m doing the 10 inch ultimax in 4th order bandpass. The best subwoofer for a sealed box, for example, will generate the deepest base, while a ported enclosure and bandpass enclosure will permit higher levels of volume.