Thanks for the sharing! I have read that review before, which is very helpful to make my decision.
And now I got one 6010D with 6-digit serial number, which should be later version.
Does anyone has experience of differentiate various versions of 6010D preamp? I know MBL has been improving the circuits inside the same chassis, which has no changes over the past 20+ years.
I am very impressed by MBL's sound, you can listen to the music for a long time with 0 fatigue...