Your BP 9020s have 3.5" drivers with 8" powered woofers. I think the 9060 would work absolutely fine with your main speakers, but the 9080 is technically more powerful and able to handle some more power. That could come in handy if you're watching movies at reference levels, at a distance, but that's pretty durned loud and most of us don't listen at those levels.
I personally would be happy with the 9060 in your shoes. I think either one would be a good match, but the 9080 is more powerful and would be able to hang with bigger main speakers if you ever plan to upgrade somewhere down the road.
