A subwoofer is a speaker that's designed to reproduce bass. They cover the lower end range of frequencies that smaller speakers struggle with (6.5″, 6″ x 9″, and etc). A component sub can add a level of power and sound to your music that other speakers cant reproduce. It's one of the necessities to a well-rounded car stereo. Add one of the best car subwoofers to your stereo and you'll wonder how you listened to music without one. Car subwoofers can make or break a new car audio system. We remember the first time we drove away from getting our subwoofer installed, and we really haven’t been able to go back to being without at least one in our car. How to choose the best car subwoofer Money – There are some subs that are budget-friendly and priced at under $100 and less, while others can go a bit higher but provide some more quality and power. How much you have saved up will help determine which direction to go. Are you building your own car sound system? Plan accordingly. This is huge for a small budget. This is one of the best car subwoofers in the budget-friendly realm and it has great performance. This is a new model by Gravity and the power seems to be improved from the previous generation. There is a cone woofer feature that offers accurate bass sound and when you carry the subwoofer, you will notice that it is lightweight. Even better, it offers great quality sound and high sensitivity that is definitely an awesome addition to any car.