Has anybody tried using the KPA with the new class D amps out there? I am talking the ICE amp or the NCore modules from Hypex. These are class D amps or modules which occupy very little space, highly efficient, and don't need a heatsink! They are good enough for high-end audio now, and are relatively inexpensive to DIY. It would be cool to see if you could put one into the KPA as there is plenty of space for it. I've seen some old preamp racks modded with these new modules so it makes it into a full-fledged power amp as well ... with almost no extra weight or heatsink needed. Idle power is also stunningly low for some of these modules (5W) though they can pump out hundreds of watts. Some modules have two amps to support stereo operation.
http://www.icepower.bang-olufsen.com/
http://www.hypex.nl/
I am thinking of getting a separate stereo unit and using that as a power amp. Would be a cool little setup with the KPA.