Preferred 'B',
Horns sound better defined, more sense of space around them at the beginning & end. The high end seems more transparent making the voices at the beginning and end clearer.
I like the more natural low end too, 'A' sounds tight and impactful but not as natural. Overall not as involving.
Um, it's the R-09.
[edit- nice Afrobeat, 'Nomo' huh? regional?]