Sounds like she's due for a trip to a designer store or a jewelry store
I'll throw in the Bryston BHA-1 or the Naim DAC-V1 (as an all-in-one) as alternate amps. They both drive the LCD-X very well. When I'm using the Bryston, I'm usually using the PeachTree DAC-iTX.
i actually prefer the bha-1 over the mjo with the lcd x, the x was a little too much on the bright side for me, but thats what the OP was looking for