from my experience yes - though the initial harshness was easily 'cured' by turning down the volume to a gentler level. after a day, things started to change, even non-audiophile friends of mine started asking how much is the 1540 after trying them on - before the 1540, they almost always just tell me i'm crazy to be spending too much on cans. I still do find it better on gentler volume levels.
Been driving it with ifi dsd + ifi itube + ifi ican. There was noticeable (for the better) change with the itube buffer specially when set to +6db. I could tolerate the bass to a higher volume level - unfortunately, it doesnt seem to cope well with a lot of strong dubstep records i throw at it. But then again i dont really listen much to dubstep music - i just wanted to hear how it will deal with the strong and ever-changing bass of the genre.
with vocals (mostly female) and instrumentals i like it very much - smooth and detailed. Although as i have said in some other threads, it sounds somewhat 'airy' for me for a closed back headphone - maybe because of the pads - which might as well be why sound leakage is bad at slightly above volume levels. Now that I think about it, at volume levels where sound leakage is minimal but volume is just enough - the 1540 sounded most enjoyable for me.
and also, the carbon fiber is just too cool ;)
hey there, i noticed ur signature u mentioned u have iDSD, is it good? currently i feed my srh1540 from pc -> schiit audio vali -> srh1540, currently looking for a fairly priced and good dac at the moment, so how do u connect it? is it usb from pc to iDSD then RCA to desktop amp?