Definitely check out Audio Concepts. Ask for Bryon, he is the most knowledgeable salesperson in there. And it has indeed been many years since Hillcrest HiFi was very good, audio-wise. They are mostly home theater now, though they may still have some good audio equipment - haven't been in there in a long time. For sure go to Audio Concepts first. Also, SoundMindAudio does not have an actual Dallas location, he comes up from Austin. As far as I know, he is mostly not in business anymore, other than trying to sell off the remainder of what he has in stock.