+1
There is a synergy between McIntosh components, and removing the C2600 may be detrimental. Also, as recommended by some members, the Bricasti and Meitner are fine components, and I doubt that the Cambridge will surpass their performance.
Lastly, I believe your C2600 has the DA1 DAC card? I have a C2700 with a DA2 module. An upgrade to the DA2 may be the cheapest way out, and then just add a killer streamer. If you want to outdo the DA2 module, you need about $5K on an outboard DAC. I have an outboard DAC that retails for 12X the cost of the DA2 module. It is better all around than the DA2, but I am gobsmacked as to how good trickle-down DAC technology has become and how much value the DA2 brings to the table.