MCormack RLD-1 or Muse Model 3?

Would a Muse Model 3 be an "upgrade" to a Mac RLD-1? Currently using a Mac DNA.5 amp.

Two good preamps. The Muse will add the last elements of transparency, quietness, detail and music to the RLD. This may reflect that fact that it is balanced (RCAs also present) or the fact that each input is gain adjustable. Or, it's just plain better circuitry. The fact remains, you can hear the difference. Now, is there a better synergy with the DNA? I should not think so.
I would doubt especially with McCormack gear...
RLD1 is not easy to beat or just follow the matter of taste and than compare the currency value.