Well i already have a that 15.3 with 1000w amp being built by nathan soooooo that covers that.

Just sitting at the three choices with amps....

mono choices emotiva upa1 or outlaw 2200
or emotiva xpa1

2 channel choice is emotiva xpa2...

Im just not sure what to do whats to much what isnt enough how the difference in sound is gonna be from 2 channel to mono. So ya.