A piano black finish on MDF takes a lot of steps. Basically, have to put filler on the whole pod to start with. Then, sand, primer, filler, primer, sand, primer, sand (600 grit). Paint, wet sand (600) paint, wet sand (1,000), paint, wet sand (1200), paint, wet sand (1500). Then, clear, wet sand (1000), clear, wet sand (1200), clear, wet sand (1500) then two coats of clear to finish. The process is no joke. At least, the midbass and tweets are in little enclosures. Only a hole big enough for the speakers wires to come through the back of the door panel.