Simaudio Moon 740P preamp vs. Ayre KX-5 Twenty

I have a friend that all three "Twenty" pieces and he thought the preamp was the best of the three pieces.

Thanks. Had I known you were also considering a preamp, my recommendation on how to move forward would have been different (in your other thread).

@jackd  makes the point, succinctly... 

I have a friend that all three "Twenty" pieces and he thought the preamp was the best of the three pieces.

In any case, I wish you all the best in the journey and what lies at the end of it.

In fact even after selling the amp and the DAC he kept the preamp for quite a while before going back to a tube preamp. Or quite a while for him anyway. 

What would your recommendation have been @david_ten ? I have not bought the Preamp yet

I would have suggested a system level approach vs a component based one. Thinking holistically of your preamp and amp choice, together as one, even a 'trio' of 'one' inclusive of the DAC vs. approaching it a component at a time. 

It's something I'm tussling with: that is how to approach our hobby vis a vis choices / changes to my system in the future.