I bought this one, http://www.ebay.com/itm/290372905689 Same thing though. I tried a 75ohm and a 120ohm. The 120ohm was too much.
I like sparkly highs, but there's just a touch too much on these FA-011's for me. I can listen to them w/o the adapter, but I prefer not to.
I can't listen to my FA-011 anymore without an impedance adapter. I have bought 3 off ebay.
It takes the edge off the highs. My ears are sensitive to excessive (IMO) highs. BTW I have the original dark red ones with the coiled cable.
Hmm... And why this instead of EQ?
Some of my sources don't have adequate EQ (CD Player, Pandora, Soundcloud)