Jonanthan,
A good friend of mine has the MicroOne's and he just loves them.
Do you see them matching well with Joe's Triode 845M?
I assumed they needed a fair amount of power.
Regards.
Unless Joe is in a massive room, the match should be wonderful. I believe his amps are 50 wpc Class A. Should be plenty. The MicroOnes are a very benign load and extremely tube friendly.