I don't think any upsampling one box solution is ultimately going to do it for you if your ears have become accustomed to NON-OS formats like the Ack Dack. If I were looking, I would head straight for the EE MiniMax.
In fact, apart from large scale orchestral, I find everything sounds better on straight 16 bit. The fancy way adds something between the notes, where with non oversampling, I am sure all users would agree, there is a blackness, and the notes start and stop on a dime, for want of a better descriptive. I conclude non oversampling methods are just plain more musical, without a hint of digititus, done right.
I also find the Monica 2 ~seems to exhibit greater synergy with the ClariT than the Nixon, though this could have to do with its more closely coupled relationship. My Toshiba 4960 doesnt sound markedly better or worse than my former Arcam FMJ CD23, once considered the King of CD players under $3K. The Monica sounds markedly better than both, and with the reclock circuit in place, it is even LESS susceptible to jitter, making transport quality almost a non issue. I would sleep on it for a month.