ive got 2 RLp 15's running off of a nine.1 at 2ohms. but its too much weight in the trunk, so i was thinking about taking one out and just running the other one off of the nine.1 at 1ohms. but the SSA website says 600-700 watts will reach "full excursion" so would 1200watts be too much for one 15" RLp?