Just recently purchased a brand new vehicle so im trying not to destroy it yet. I want to know what sub would be better on a jl 500-1 I have an sa 12 and tantric sound hd 12. I dont know much about the amp because someone gave it to me but I hear they are underrated giving as much as 1000rms at 1ohm. I can run the sa12d4 at 2 ohm 500-600 rms or the tantric at 1ohm at the rumored 1000 both I know is underpowering them but you think it would just be better to run the sundown since its closer to the rated rms? theyll be going in a 1.8 cu box at 35hz