No hertz or the mx not a fi fan. Subs I might be interested in are 2 12 t3 tsns or dc level 5s subs that are gonna take what this sub takes. Subs that are worth 400 to 500 a piece used times 2. This cone and dust cap have 2 more recones left on them you can recone kevlar cones 3 times. If you guys think what I want for the sub is unreasonable call dd and try to get one. I could have bought two t3 tsns's and had change. This sub is my baby and I could grow old with it just thought maybe I wanted to try something different. The dude with twenty dollars I let you here it for that much lol.