I think @Hazi59 had the sound changes pretty much spot on. With the Yaxi alcantara pads, bass is reduced a bit (although on my Lawton modded X00s there is an odd boost as ~50hrz), the lower mids are not quite as full, the upper mids are less forward, and the treble is about the same (all this is in comparison to the Ori hybrids). What I don’t agree with him on is that they sound as bad as he says. They sound good, just not as good as the Ori hybrids. If you have a different type of wood or are using a stock cup as apposed to a Lawton chamber, YMMV. These are not going to replace my Ori hybrids, so I guess it’s time to try them on my DT770 250ohm.
Sorry for the false hope @WaveTheory , I guess my ears where a bit off that evening.