GunStepp05

I got like $700 to blow right now so it dont really matter

My F-250 has two digital designs 1515`s and they overpower my stock 6x8`s bad. I dont know if i should just get a better pair of 6x8`s like the rf power series or any other pair that are good. Or should i get a 6.5 adapter and get the DD 6.5 componets. What ever i do i will get a good amp to push them. What should i do? Or if theres better speakers for a little more money i could possibly do that.