Ok so I am in a debate. My old setup consisted of 2 18" RD Alphas and it hit the lows pretty **** nice and thats what I like. My new setup is consisting of 4 12" Alphas. I want low bass but at the same time want to be able to put up a decent number. Are 12"s capable of hitting the lows as well as 18"s? I am in a debate whether I should tune it to 32hz or 38hz. Can I still hit the lows with 38hz tuning?