We ditched the stamped frames for cast baskets and made the surrounds wider and taller than the HDS2.1 line. You'll find stronger motors with bigger magnets and thicker top plates, and thanks to the improved surrounds, greater excursion. The item "HDS2.2 Series Subwoofer 8 Inch Dual 4 Ohm" is in sale since Monday, April 12, 2021. This item is in the category "Consumer Electronics\Vehicle Electronics & GPS\Car Audio\Car Subwoofers". The seller is "soundqubed" and is located in Oklahoma City, Oklahoma.This item can be shipped to United States.