There are many subwoofer in the market but which one is good? Lets see. There are several types of subs. But we have to find the good one. At first we have to take the branded subs in our list. Then we have to see which subs are made with good material. Then which sub gives good bass and sound quality. Which subs has good reviews. You can meet with a customer who bought it, so that you cxan find the good shallow subwoofer. visit us: https://outdoorsumo.com/best-compact-subwoofer-car/