Chris J
Headphoneus Supremus
The round one is a larger headphone jack. I plan on using this setup with the Alpha Dogs, and the standard cable on those does not have a 3.5mm headphone jack. The square black thing is a Sansa Clip+ with Rockbox firmware installed on it. It's my DAC. It's small and cheap, but very good.
http://www.amazon.com/gp/product/B000068O6B/
http://www.amazon.com/SanDisk-Sansa-Clip-Player-Blue/dp/B002MAPSC6
http://www.rockbox.org/
very cool!
thanks.
Chris