2021 Road Glide. I currently have WDXMOTO6CD speakers in the fairing driven by a SD400.2 I just purchased a SD400;4 my plan is to mate the 400.2 to my Mmats PA601CX and set the voltage to supply 140 watts crossover probably around 100hz and the 400.4 to the Motos set the amp around 200 - 220 watts specs say they can go as low as 80hz, I also recently purchased a set of lowers. so my question is which set would you recommend going in each location and why? Running BT355 from stock GTS unit without a flash if that infromation helps.