Review on Sound Storm Laboratories LOPRO10 Amplified Car Subwoofer - Boost Your Bass on Limited Space by Darrell Verduzco

The sound quality of this subwoofer is very poor, once you turn the volume up above 25% it just vibrates. After 11 months of use it has already let me down! Unfortunately I live in Australia so the guarantee is impractical when I have to pay shipping both ways. I had it checked by a mechanic here in Australia and he said it was very cheap and not worth repairing (faulty motherboard). even selling me one so this item is now useless. Not a good experience, I won't buy anything from Sound Storm again.