I have a Audiobahn A8000T monoblock amp that does 400 watts at 4 Ohms. I want to purchase a Kicker Solobaric sub, and i was about to get a L7 12inch but i was told by a car audio installation place that i will blow out the sub over time because the L7 at 12in is 750 watts Rms. He told me buy a...