I wonder what amp everyone is using with their 160x? I ask this because the Classic + Stepdance lets me listen at very low volume levels with perfect channel balance. My latest discovery, sitting here listening at the wee hours, is that the PF IX sounds wonderful at low volume. It brings out the liquid mids.
(Listening to the UB40 File, i.e. before they sucked.)
Oh, and for the last couple of hours I have been listening again without any EQ and loving it. I think that this is a mood thing. The natural sound balance is sweet and and a bit mellow with bass that isn't heavy but plenty deep. I think that I will just keep playing around and playing around. These are headphones that beg to be explored. :-)