PowerBass S-Series woofers now sport a treated non-resonant finished, stamped steel basket that is custom tooled with our distinctive X design. A 2-Inch BASV voice coil former is used on the 10 and 12-inch models, while a 1.5-Inch former can be found on our brand new 8-inch models. These new 8-inch subs require only 3.5-Inch mounting depth.