All, fans of NCore-based amplifiers like Merrill Veritas, Theta Digital Prometheus, Audience WavePower, Rowland M825 / M925, and the Mola-Mola Kaluga, might enjoy this 48 minutes long technical talk by Bruno Putzeys, designer of the NCore technology inside all these amps...
http://www.youtube.com/watch?v=0vsOugSsANs
The presentation is mostly above my technical head... Never the less, I found his analysis of the problems of jarring sidebands caused by treble intermodulation particularly interesting, and congruent with my own observations of the incredible sweetness and harmonic richness of complex treble in all NCore amps that I have experienced.