This is a new line that a local distributor/dealer started. That's why they are not known to anyone. The distributor/dealer is also the biggest sundown distributor in dallas. These subs are built in the same build house as the entry level sundown stuff E,SD,SA etc. In my opinion the product is very similar to sundowns entry level to mid line woofers. I went down their today to look at some of their nemesis audio amps as well 2k,4k, and a 6k. Very good pricing for what looks to be a solid product. Also, I am a Dealer so I am somewhat biased to the brands that I carry, but I can see myself starting to push this line because of the price and quality. I will be doing an install using their amps next, I am looking forward to seeing how they perform as well.