I found it much better with full bass boost, but it still won't exactly kick ... not sure that's even possible from a shallow 8" sub (I'm not a sub expert).
Not a sub expert also but the Hansshow 8" sub isn't a good quality and it needs an enclosure to make up for it. Also using A/B amp isn't efficient. The amp is outputting just a shy over 100 watts in real life. A good quality sub and enclosure, even a 300 watts will kick hard.
I was in 2012 Model S as a loaner the other day. The EQ was set in max and the bass is boomy similar to the Hansshow. I like a tight real production of bass. I still like my setup. I'm really happy with it. If I found someone with the Premium Audio.