Yes, APO defines slope in dB/oct. I did attempt to find a conversion, however according to the calculator for Q to BW, this does not appear possible:   http://www.sengpielaudio.com/FilterSlope.pdf

Thanks for sharing. I've been using the second tweak for two weeks and it sounds brighter and clearer than my own attempts at EQ. Most of my listening has been done through my Xonar soundcard, and foobar2000 vst + EasyQ. I attempted to EQ with Equalizer APO but it doesn't accept Q values for LS...

Its been a few days since I bought these and I've let them burn in. My opinion hasn't changed, the soundstage is relatively narrow. My old ipod headphones are quite comparable to the pistons, with the exception that the pistons have more boomy bass. My comparison is probably a little unfair...

I got my pistons today from Amazon. Its nice that Xiaomi put so much thought in the packaging. The build quality is stellar. I've spent a few hours with them, but I'm still undecided. I'm coming from full sized headphones and my experience with IEMs is limited. I always mess around with the...

Several months back I did the bass mod. I switched between different layouts for a few weeks, at first leaving all three holes open at first, then two and finally just the middle one. I settled with the single hole in the middle. The bass is punchy and has an amazing amount of detail, and it...