I received my Explorer yesterday and I use it connected it to my Macbook Pro and Sennheiser HD650. I can't stop listening music since then. It's a real pleasure!
Don't ask me to describe it's sound in detail because I would not be able. I can just say that the explorer is a pleasure listen, even for hours... Basses are rich but not exaggerated, sound is detailed and clear.
I am impressed by it's minimalistic design and the construction screams quality in every detail. It's light (50grams!) and really portable.
I am confused about some negative posts regarding the Explorer's SQ in this thread. Maybe different setup, maybe different tastes. But I think everybody will agree that this piece of kit is turning you laptop into a real hifi.
So far, very well spent money, IMO!
EDIT: forgot to write that I'm playing music with Audirvana Plus and the Explorer is compatible with Audirvana's Integer Mode, which delivers the best possible SQ for this player. Sweeeeeet!
Edited by doraymon - 1/30/14 at 1:59am