Too bad Fostex can't find a way to make the bass user adjustable. Perhaps with a closeable bass port somewhere on the headphone. I think that's been done before on a wood enclosure but not sure how it would look (or how feasible it'd be) on the T60rp. I definitely wish my T50rp mk3 had more low end. Even thought about getting a T20rp just for that even though it's sub-bass still appears to be rolled-off.