I had some extra time and speaker wire so I tried hooking them up both ways. There is no comparison, the fully active set up is way clearer. The x-overs added a buzz type sound around the x-over points that was quite noticeable.

My PRA-H400 adds road noise when the subwoofer RCA's are hooked up whether the subwoofer amps are powered up or not. But when I play my Sirius radio which runs through the PRA the noise isn't very noticeable. I am going to upgrade my subwoofer RCA's but am open to other suggestions on how to get rid of this noise. I've hooked the PRA and deck up to several different power and ground locations but nothing changes except to unplug the subwoofer RCA's.
Ideas please!!!