There is no stereo shop in USA that offers what we do. All stereo shops are in the parts business. All they care about is selling as many speakers and amplifiers as they can. They could care less about how it sounds. We are in the sound business and we don't care about parts. The name brand of the product has nothing to do with how it sounds. Most people concentrate on what brand woofer that they are going to use but they should be concentrating on what kind of box design. Most people think that they need 2 woofers but 1 woofer in the right box makes much more bass. Freedom