I do not intend to do this, but have seen a few builds go this route. Is there really an advantage on adding an extra pair of components to the front stage rather then going with a dedicated mid bass? I've seen some people say they plan to get a pair of 6.5 components installed on the doors and another pair on the kickss. Wouldn't it be better to get a dedicated mid bass and install it on the kicks and then raise the xover point on the 6.5 driver (passive component set) so it can do mid range duties and sound more clear/loud doing it? I can imagine a dedicated 6.5" or 8" mid bass being a better choice rather then installing a second pair of components. Am I the only one that thinks this or what? I'd like to know the advantages/disadvantages of both setups assuming the 2 sets of 6.5 components are off a 150x4 amp and the dedicated mid bass setup with it's own 2 channels of power. Feedback would be great since my search didn't come across this questionn, thanks.