What is the version of specification of USB port of Helix?
POD HD devices used as Audio Interface has some limitations because of half-duplex mode of port USB v2.0 specification. Actually, the specifications USB v3.0 and v3.1 allow full-duplex mode. See also: USB 3.0 Pinouts (about half-duplex and full-duplex) https://en.wikipedia.org/wiki/USB#Cable_plugs_.28USB_3.0.29 http://line6.com/support/page/kb/_/computer-based-recording/computer-audio-set-up-and-troubleshooting/usb-audio-troubleshooting-r443
