AIR software

[Zappydev]

It should be though it might depend on the quality of the USB lead.

As far as I know the USB standard claims to be effective to 5m. I did borrow a very very expensive USB lead at 7.5m (Transparent Audio) which did work, but clearly it depends on your layout.

I've never tried Audiovana so cannot comment on that, sorry.

Using a regular cable, I have found the SQ to be much worse than AIR, but your experience may well be different. Some users here report issues with the USB input too, but it was reliable for me.