I installed this on
Kia Cerato

Review
They are really nice woofers for the price. They sound really nice and get loud. Im not a huge over powering bass head, but I want them to hit hard when they need to hit. These are good for that, they are clean but can get loud. I love the way that I can clearly hear the high and low end sounds now. It was performing better than the stock. They are really sweet subwoofer. I really love it and it's a must for me to listen with it when I'm driving.

What I like
I can clearly hear the high and low end sounds.

What I do not like
It's kind of hard to find now.

Review
This Hertz HX 300D delivers superior low end. It bursts low end goodness on every bass drop, delivers decent clarity and reasonably priced! I have been pleased and impressed by this sub.

What I like
I love how it delivers the bass boost, rich and low. Never experienced such quality bass before!

What I do not like
For middle-pitched to high-piched tones, these woofers do not give that much of the quality as it does with low end tones.

Review
Bought this last week, and it was performing way better than my 10 inch audio system subwoofer. Weight is almost the same. But down side is need to upsize the amplifier to suit a beast like this. Ups.