well it can be done, but if i were you i would just save up $150 and get an alpine HU. in my experience with rca's connected to line level converters, the sound quality is poop
blue 95 se MTX
alpine 9805
2 diamond 12" cm3's tuned to 38 hz
4 pioneer 3-ways(POS)
jbl bp1200.1
pimpin hoes, like the river flows..... constantly!