I currently have ODAC RevB by JDS Labs I want to use it on my iPhone 6s can I buy aheadphone amp (Fiio E12)? or Audioquest Dragonfly black can be better? my primary concern is sound quality

Hi Head Fi-ers I'm a relatively recent convert to the high-fidelity creed I've just ordered the JDS Labs O2+ODAC using some money gifted to me on Christmas, to use with my computer. I know they'll drive all of my phones well & are considered a great buy for the money The trouble is, I've never...

Okay, yesterday was enough intro for me. The discussion below originally appeared on reddit/headphones. I'm re-posting a longer response with pictures, as the topic commonly arises. "Is an external power supply . . . an inherently easier design?" Designing a sufficiently low noise supply from...

I recently purchased the Sennheiser HD650s as an upgrade from my vice-grip-like HD280s. To pair with it, I bought an O2 amp from JDS Labs. They both should arrive by the end of the weekend. My question is, if I cannot hear noise when my headphones are plugged in, am I still better served by...