I may be forgetting something? In any case, nothing is ever perfect. I'm still hearing just a bit of flatness or lack of micro dynamic expression with 006, I continue to hear just the slightest improvement here, long, long development phase here, probably around 350 hours, I know these caps in 006, they can easily take 400 hours or more depending on the amount of current running through them. Also a bid of mid range excess, like a small frequency boost in this area, this likely due to cheapo copper I2S cable or new power cable (williewonka Helix design I use my own recipe on) I just finished assembling for Gaia. Burn in, especially with the Rhodium plugs can cause this as well.
More development with Gaia coming, custom made Tubulus I2S cable in Monday after 3 week wait. More burn in of Gaia and the power cord, perhaps new setup with Gaia, at present stock feet on Baltic Birch platformx, have many solutions available to me if I need to adjust presentation.
Bottom line feelings on I2S vs usb interfaces. I now believe usb is inferior to I2S by a relatively wide margin. I could more easily understand it with the Harmony, but the technology Musetec expended on usb in 006 made me doubt it. While I can't make this statement universally, any streamer I would possibly purchase in the future would have to include an optimized I2S out, one coming off motherboard doesn't count. All this optimization of usb is needless IMO. This all on streamer manufacturers, I2S inherent to dac's, I don't get why there isn't both standardization and optimization of this interface in streamers.