I agree this PA3X video presentation doesn't optimally showcase the Pa3x's sound quality, but neither do the Namm videos shot by my friend Tapas Das of Martin Harris demoing Tyros 4 either. Both were filmed in HD yet simply ultilize a similar quality built in camera mic to pickup what is heard thru the room's Pa system. In an attempt to present an "apples to apples" similarly recorded sound comparison between the PA3X and Tyros 4, and with both instruments demonstrated by equally competant pro arranger keyboardists, here's the Martin Harris one posted on my YouTube channel: