Problems with Pro-Upgarde on a D400

[tom539]

Sorry to hear of your problems, glad they eventually got sorted.
Waiting for the amps to go back and forth must have been tough!
Importantly: how do they SOUND now?

Hy @ICUDoc 

they are still „running in“ - had found out from the master, which was already running for a week, that the new hardware needs about 100-150h to show its full potential.

But it already sounds much better than the D400 - just a different level 

atb, Tom