Nice subs no doubt. If I were to choose from your choices it would be Velodyne DD-18 then the JL Audio Fathom based from years being a Velo dealer. The JL Audio could easily be my first choice though as well. That's a tough call.
Another sub we are having great success with is from Triad speakers. Specifically, the Triad Gold/Platinum PowerSubs. Both are as good imho as the others mentioned and are less expensive. Plus, these are righ-sized unlike some of the ID brands that go for shear output and are as big as Volkswagons in your living room. Ouch!
Another sub we are having great success with is from Triad speakers. Specifically, the Triad Gold/Platinum PowerSubs. Both are as good imho as the others mentioned and are less expensive. Plus, these are righ-sized unlike some of the ID brands that go for shear output and are as big as Volkswagons in your living room. Ouch!