@melm On the taping thing, that makes sense for the Musetec and 004 as I had tried the tape thing with 004 prior to 005 purchase and same thing, couldn't be sure I heard difference. Now, I did do the tape thing with previous Auralic Vega, which also has very nice usb implementation, thought I heard more of a difference. Imagination or real? I came to realize over time that perhaps it was futile to tape over pin since the self powered element, still thought it better theoretically to keep whatever possible contamination out. As mentioned before, not sure I hear difference.
You are absolutely correct as to comparing one usb to another IF USB BEING USED ANYWHERE IN CHAIN. DUH, staring us directly in face. While I couldn't recall, this was part of my thinking in not even attempting to use my Singxer SU6, it was only the Amanero internal usb I was bypassing, knew it was better than usb board in Singxer.
@lordmelton I just looked through some threads and can't find, but I assume you couldn't use I2S directly out of Aurrender because of pin incompatibility? This would be ACTUAL true comparison. Perhaps the entire ramifications of what you're actually doing has escaped you in excitement to try this new setup? Sometimes the mind does funny things what with expectation bias. Do some more comparisons and report back. Theoretically, using the Amanero board should be much better than that LKS, also adding complexity. The only advantage would be the external LPS. If what you report remains true, I'd find the usb within Aurrender highly suspect. This actually fits in with my research and experience, the typical usb ports on vast majority of servers SUCK. Get the Phoenix and hear what usb is really capable of.