You are kind of contradicting yourself. This is the exact reason that it can't drive loads down to 60 Ohms.Guy 13 said:It is a fact that the Crack is optimized for 300-600 Ohms heaphones,
however, it can drive load down to 60 Ohms.
I tried my Sennheiser HD570 at 60 Ohms and they sounded good,
except for the bass that was not too good.
Muddy, no impact, not natural, not really listenable...