Are those 15 inch kicker cvrs any good or junk any trade vaule?

Kicker is great if you want something that will shake the **** outta your car. Jl is great if you want smooth clean sounds. But kicker is definitely hella beatin. Got a friend with 2 15" kicker cvr and I rarely hear anyone out bump him and I do mean rarely. Of course you'll need some serious power to push them and prolly an optima battery and better alternator