.. if pioneer is your choice, go for the 8650, its priced within rm2k-rm2.4k.. dun bother getting 9650, it has the same features with 8650 but different interface design, setting & costs more..
8650 has time correction, eq, x-over, 1-bit burr brown, etc .. .. any pioneer models above 8650 are higher end stuffs, cost more..
of course, 4 that price there's always alpine, eclipse, clarion to choose from