The EMC 1 works very well with the Pass but you do not mention your preamp which is probably more critical. This is one of the top 5 CD players in the world in my opinion. Especially with the new cap, resistor, diode, etc. upgrade.
Many customers that I have use the EMC 1 with the Pass products. Also there is no EMC 2 there is just the EMC 1 with the 24/194 upsampling upgrade, and now the new internal upgrade. Of the CD players that you mention the EMC 1 is the best choice. I will throw no more players into the mix since often one's instincts are the proper course to follow.
I can tell you that I have yet to sell anyone an EMC 1 that has not been totally overwhelmed. Of the 5 great players on the market this is the most bang for the buck.
I guess it is time to say goodbye to your Monarchy Dac.