I have a 5 channel Planet Audio PA6005 amp that I'm using solely for sub power until I can afford to build the rest of my system.
This is what I think I know....100x4 + 300x1 @ 2ohm...50x4 + 200x1 @ 4ohm...
200x2 + 300x1 bridged
It will be driving a single 12" 400w rms @ 4ohm in a sealed box...