I used Auralex panels in a dedicated LEDE room and they were very effective in eliminating first and second reflections. I may have overused them and/or not mixed in enough diffusion however. Good recordings were spectacular in terms of realism and depth but bad recordings were lifeless. It was a very ruthless room and system.
One more thing, mine were beige in color and that particular color faded rather quickly becoming a sort of mustard color. I don't know if the burgundy would have the same problem.
One more thing, mine were beige in color and that particular color faded rather quickly becoming a sort of mustard color. I don't know if the burgundy would have the same problem.