and almost as big an issue as the cost is what am i going to do with a perfect speaker ? reality is i have a full basement of studio monitors and i never bothered hooking them up after moving from NYC to NJ instead i just use my Bose headphones because that way i can use the same same thing everywhere and to make phone calls and it just automatically switches sources from phone to PC ... i also never bothered hooking up my 18" subwoofer since i moved it from the room where it was originally installed. i just use it as TV stand now. so what does this all say about this array speaker project ? that if it was built i would listen to it for a year and then it would never be hooked up anywhere again and i would just have to pay movers to move 1,000 lbs of audio equipment every time i moved knowing i will never actually listen to it nor ever sell it ...