from what i remember micah telling me, the higher line of
MB's require much more power than the stock amp can
push out. now, if ur going to be adding an aftermarket amp
later, then, u could go w/ the higher end MB's.

i installed the BSW Stage 1 kit and am quite satisfied w/ the
sound. i've done full installs in past vehicles, but will not be
doing that on the X; therefore, i stayed w/ the Discus line.

as for not using the crossovers, i believe that the oem amp
already crosses the frequencies; so, there is no need to use
the MB crossover.

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