This is why I mentioned only spending 300.00 on the equiptment and save the other 50.00 for the installation. Once you have the amp and sub you can have them installed at any shop you want. There are plenty of good subs out there between 75.00 to 100.00 and then spend about 50.00 on a box and your good to go. This way your spending the same amount you were going to allready and chances are you'll have a better setup.