I 'Ve got an alpine mrv m500 want to upgrade my sub (Sony xplod) and I am thinking about jbl gt5-2402br (https://www.jbl.com/factory-refurbished/GT5-2402BR_.html?cgid=factory-refurbished&dwvar_GT5-2402BR___color=Black-Global-Refurbished) OR mtx rt12x2dv (http://www.mtxaudio.eu/products/caraudio/archives/item/rt12x2dv).. What do y think is a good choose?
