I bought one for myself and one for my brother. You put it on and simply have a very decent and good sound. It doesn't break the bank but plays as correctly as it should. If you don't have space, it's the best solution. It has a closed box and doesn't have any issues with air

I have a Hyundai Atos and because it has a small trunk, I bought this specific sub (and not the 12-inch one) and it makes the whole car creak. I play it with a ground zero amplifier that can handle up to 240 watts max and the sound doesn't distort at all when I have it at high volume. We're talking about crystal clear bass. Furthermore, the sound system I have in the car is all Hertz (rear shelf and front) because in my opinion, it is the most reliable and affordable brand of speakers. And now, with this sub, it's absolute mayhem!!