JL Audio Fathom F113 v2 SubwooferJL Audio Fathom F113 v2 13. 5" Powered Subwoofer Gloss Black The Fathom f113v2 is a heavyweight subwoofer capable of filling the most demanding rooms with powerful low frequency output and reference class sound quality. The combination of an ultra long throw W7 13. 5 inch driver and a very powerful switching amplifier give it the kind of output normally associated with far larger subwoofer systems. Because it is built with the same driver and