Midgetguy
Headphoneus Supremus
Seems like there's a lot of enthusiasm for the Delta and Techne. The Hyperion feels left out, so I'm going to help out...
The Hyperion is the first IEM I can lay down on my side with comfortably, not have sound cut out, and retain its seal. I think it's the tiny size!
Hyperion vs. Standard USB Connector
Burn-in will commence in 5, 4, 3, 2, 1
I'm absolutely sure it's the small form factor. My Flare R2A is so far the only one I could lay on my side with and not have any issues, be it comfort or sound. So size would definitely be my bet. An IEM can obviously be labeled small when the shell would be able to fin IN the tip that's on it.