If money is not a problem, what brand of speakers would not be MY problem either. I would pay whatever to bring Preservation Hall Jazz Band to my mega-mansion for an exclusive, private performance. Then I would check with my publicist to see if she can book Michael Bolton at http://www.grabow.biz/Contemporary/MichaelBolton.htm.
Of course, the sound engineers that come with these packages can bi-amp their mega-wattage PA speakers for me. I wouldn't really care about THD or codecs, because in the end, it's only music.