i think the setup will work but not the best. When pioneer head units said 45x4 it was actaully 19 watts RMS. you will not be getting 50x4 but more like around 19 still. The only reason pioneer increased the max to 50 was to keep up with sony. most people dont know about RMS power and just look at max and since sony said 50 they would buy sony, know pioneer is trying to keep up
-just a little info
chris
