Huh... didn't expect to be so unclear... Sup got me right, but just in case let me rephrase: Both - Master-5 and Master-6 have custom (lowered) gain option when ordering one/any/either/each of them.
...and yes Tim - I want one, but for the time being my wallet puts veto on that... and yes - it would be 6 (except the output transistors, the whole 6, including pre-drive output stage is the same as 5 -- pure class A, not to mention that those 8-9W will firmly grip my HE-5, HE-500 and melt my other phones).
Man... just
recently I've maxxed my Roc and now it really kicks a**. It should put my headamp upgradeitis to rest for some time, but no... The irony is that in the process
I've empirically learned that even small PSU upgrade (4 caps) can make quite perceivable difference. I can only imagine what kind of improvement those dual mono parallel multi stage class A Master PSU sections are carrying with them. Well... once I finish fixing and maxxing my RE-1/7 I hope...