@John08007 Sorry to take over your post...
I would recommend the XR G4 Apex w/WXM if that is the route you're planning on going. I don't need to go into the bugs with the G5 and Mobius there are plenty of threads out there about that. Long term you can't really go wrong with Ecotech I still have a pair of XR30 Gen1s (I can't tell you how old they are), MP10s have been with me in this order 4yrs, 2yrs, less than a year. I sold my MP40s to get gyres which I love, the only downside is that they don't work with the Apex outside of turning it on and off.