This is a comparison chart for the first series of Emo amps.
The MPS-1 would have been the first or second multi-channel, and it is the one that shares DNA with the Carver Digital amp. At the time the Carver amp was being developed, Dan Laufman had come into ownership of a Chinese supplier that was being used to develop the Digital line for Carver. When Carver folded their tent in the home audio arena, Dan had this wonderful amp, and some tech that was ahead of the curve in a multi-channel amp. It is believed that he renamed this amp, and with a few cosmetic changes, Emotiva was born. It was the most expensive and best built Emo amp IMHO. The best sounding too.
Sunfire was launched a year or so later with the Tracking Downconverter designs, and B&O picked up on the "card-amp" concept, which became ICE power.
I could be off somewhat, but that is my understanding of how things played out. If somebody has further information, that would be cool to learn.