Late to the conversation too. I think a terrific product will be some grey box  for speaker amps to drive safely a variety of headphones. I don't know if this is a valid proposition and sorry if it is a plain silly,  but being a primary speaker guy, what a bliss would be to try different cans...

Aphex Puna   The Puna grassland ecoregion, is found in the central Andes Mountains of South America.

Hello I need to know where to buy Sennheiser HD800 in Rome, Italy, parents are heading there for the holidays and asked for a gift Thanks in advance