8 shallow mount subwoofer - 8 inch shallow mount subwoofer - best 8 inch subwoofer

There are several types of car subs on the market. Like rockford, mtx, kicker, kenwood etc. But these subs are many 8 shallow mount subwoofer in the number. So what is the best car best sub? We will have to find it out on our own. So we will have to find which one gives the deep bass.