Haven't built a system in a while so I need help choosing one of these amps. Going to run 1 sundown SA 10 not sure if it will be a 2ohm or a 4ohm ver. I've narrowed it down to a Soundstream TN1.1200 or the Rockford Prime R750.1. Would the Soundstream be to much for the sundown at 1ohm? or should...