DS18 High Excursion 8" Car Audio Subwoofer 1200 Watt DVC 4-Ohm Sub ZXI ZXi8.4D
The ZXI subline is renowned for its high excursion capabilities, and the ZXI8.4D is no exception. The ZXI8.4D’s lower than normal FS (Resonant Frequency), allows it to excel in larger boxes with lower tuning.