Kexodusc had persuaded me to build a DIY sub during a discussion about $600 sub recommendation months ago. At first, I planned to get a Dayton 15" kit he had suggested from Partsexpress. But when I placed the order, the sub has to be shipped by UPS for its size. And this way, I would have to pay shipping+ tax + brokage fee, which would be more than half of the price. While in the States, people get it for free shipping. The difference is too much... Finally I ordered a TC sound 2000 12" driver when it was onsale for $159USD and some tools. I will try to build a enclosure myself (possiblly with some help) when the weather gets warm. I am not handy, but I'd like to learn some carpentry for the project. I may finish it with a ugly box, but I will try to make it rock for its price;-)