AngelList has changed the early stage funding scene, bringing online efficiency to what was a decidedly analog process of raising angel funding.

FORBES: AngelList Takes Angel Investing To Warp Speed

It uses a technology called PurePath Digital to amplify the ones and zeros of an audio stream without having to convert it to analog (a process that can introduce noise).

WSJ: Stereo Sound, Rekindled

People always criticize the quality loss in the analog-to-digital conversion but few consider the advantages of reversing the process.

ENGADGET: V-Moda VAMP for the iPhone: an analog converter and headphone amp with a $650 pricetag