Dallas or Texas-based audio companies


General question.  Are there any notable audio companies in the DFW area?  I love buying local if possible so I'd like to further explore those brands.

I know Rhythmik is in Austin.

Any more?
dtximages
Raven is in Texas. Not sure how "local" they are, Texas being bigger than many countries and all....
Silent Source Audio Cables is in Dallas. All of my interconnects, power cords, etc are from Silent Source. Incredible products. 
Silent Source looks interesting but I can't find any info about the company and their products seem to only be sold by 3rd part sites.
Thanks @millercarbon I have heard of Raven. They make excellent tube gear but their speakers appear to be WAY overpriced.  I'd like to know how many they've sold as $20k for an obscure brand is quite a risk to take give the other great speakers in that market.