Yes modding voids the warranty. You would needc to contact him and he could explain the mods. No components are changed and they are all passive. Made a nice difference in mine and I would do it again.
I hope you like them. They are clean sounding and transparent but if you are looking for warmth they are probably not going to meet that requirement.
I hope you like them. They are clean sounding and transparent but if you are looking for warmth they are probably not going to meet that requirement.