maul

Writing something based on my specific setup doesn't make much sense? Isn't that what we are all doing?

That's interesting, I have the 4490 as well and I think I'm one of the few who is not impressed by the Regen, or the Wyrd. Whereas the Wyrd makes highs smoother and the soundstage larger (both to an artificial/colored degree, I don't like it), the Regen seems to do the opposite, and to a lesser degree. I've done literally hundreds of switches back and forth and I'm consistently finding that the best results are with no Regen/Wyrd at all. I can see how these devices might positively affect a USB-powered dac, but with something like the Bifrost I'm really starting to come to the conclusion that they are unnecessary, and actually detrimental depending on your preferences. I went in with as little bias as possible for both the Wyrd and Regen, and my ears keep pointing me back to removing them from the chain. The truth is the differences are small, and it would be very easy to be pointed in the direction of thinking they are positive if you have expectations based on all the hype/positive feedback... especially if you aren't testing things back and forth a ton of times. It all comes down to your preferences I guess, but I don't think there is a definitive "better" with these devices connected, at least in my setup. Unless of course you are trying to fix some USB-related issue.