Hi. I have a PPI PC21400 amp. It's a 2 channel amp and I am hooking up 2 kicker L7's to it. The amps rated power is 350 WRMS x 2 @ 4ohm per channel, 700 WRMS x 2 @ 2ohm per channel, 1400 WRMS x 1 @ 4ohm bridged. Right now I have been going with the 4 ohm version of the L7. should I get the 2...