I have owned the TT2 with the Mscaler, dCS Bartok, MSB Discrete and now the Premier. I would take a serious look at the MSB lineup. I found the discrete to be much more natural than the other dacs I had owned. I was also surprised inning them with a pair of Rockport Atria II and then Cygnus with D’Agostino momentum HD and M400s.
MSB is a modular design with multiple input modules. I currently prefer the network renderer. I also pair it with a gigafoil and linear power supply.
I did upgrade to the premier Dac and the hen to go in full MSB with the s202 amp and sold my momentum gear. I actually was able to put money in my pocket and I find the sound to be open and resolving without losing much if anything from the momentum gear. There is a great synergy between the MSB amps and dacs.
MSB also has a great upgrade program where you get 100% of you money back towards the upgrade.