I'm going to go off the computer audio res for a moment and share my enthusiasm over the self-powered Kii
Three Loudspeaker System ($13,900), which are designed by Bruno Putzeys (here's Bruno on his DAC
). These rather diminutive speakers are rated down to 20Hz +/- 0.5dB and the basic concept behind their design is they energize the room unlike a traditional loudspeaker. According to my ears this claim is true, and I noted a whole bunch of quickly scribbled accolades relating to their ability to present music in-room and out-of-room simultaneously. "Sound spreads out like a city" is the most coherent comment from my notes.