Amplifier V3 Mono op amp rolling advice?

[megalift]

I have just received my V3 monoblocs and 2 x Muses 02 op amps as my free early bird gift, so my assumption is that 1 goes in each amp?

Can we have a brief guide on placement and effect please?

I'm guessing 1 position benefits RCA users and the other is the (balanced) XLR line?

What does the 3rd op amp near the power input do and which op amp should balanced and unbalanced users upgrade please?

Thanks!

 

[whitwye]

There's a comment elsewhere from Fosi recommending upgrading either of the other two (non-RCA), or both, if running XLR (as I'll do when I get these). But they don't say which does what, functionally, nor which should have the maximal effect when upgrading just one. They did say upgrading either would change the sound, and upgrading both change the sound even more. With the two Muses you could try each and both and see what you hear, if you've got the patience for it. I'd welcome your report.