Originally Posted by drexman
how's the bifrost's usb sound quality compared to spdif?
1. I prefer the USB in my setup.
Not surprising that with my setup USB sounds good, for a couple of reasons: Async USB probably offers the lowest jitter at this price point with my source (MacBook Pro, where the alternative is the digital optical output, which reputedly has lots of jitter). Also, the player I use (Audirvana Plus) does nice things to help with some of the disadvantages of the fact that USB wasn't designed as a dedicated audio interface.
Look, each interface has its advantages and disadvantages. The S/PDIF interface was made for audio, unlike USB. Optical offers the lowest electrical noise. Coax offers greater bandwidth than most optical interfaces. So it strongly depends on your own setup. Does your source have vanishingly low jitter? Then S/PDIF may work better for you. Does your source come from an electrically noisy environment? Then optical may be what you want. Is the source electrically quiet, with low jitter? Then coax's superior bandwidth may win out.
Moral of the story: Hook it up to your own system, burn it in, and listen.