Ive recently brought this amp to power a Kicker 15" ls7 dual 4 ohm sub .
I need to know to get the best out of this amp do i need to buy the following

?
1 PG pro line driver
2 pg bass cube
Or will it be all right by it self to power the sub??
Its rated at 1400 watts rms ( so they say), to achieve this would i need to boost my charging system to obtain 14.4v

Please help me out , iwant to get it right first time!!
Anybody got one , is it all its made out to be!!!!