Yeah... I'm in the same boat with DangerClose regarding the bass performance of pro80. I'm starting to think that there are variations between different pro80's. Does anyone have multiple pairs? Graphs
here indicate that pro80 have quite a bit bass emphasis but my pair sounds nothing like that. There is more bass than on hi2050, less than on hm5 and a lot less than on superlux hd681. Bass shy side of neutral to my ears. I have the old model with coiled cable and small headband. Soundstage is excellent though. With stock pads it is better than average and with hm5 pads it is very big. I have had few different hm3 clones and the soundstage on those is no where close to pro80's. You can clearly hear the drivers on hm3, if you know what I mean. It is just two speakers next to my ears which I can easily locate. They do nothing to push the sound behind the drivers and outside the head. However those are excellent headphones for 20$. Very good balance and clarity making cheap and often recommend headphones such as koss portapro sound bad in comparison. I am not surprised that many people find highs on pro80 (and hi2050) piercing. It is very source dependant. I have had those sound anything from smooth to piercing depending on the gear used. But the highs have never been as razor sharp as on superlux hd681, Akg k514, sony mdr-sa5000 and Beyerdynamic T1. There are others of course but those four have been the most sibilant and shrill headphones I've encountered so far and the pro80 are far from being that bad.