Wouldnāt bet on that a lot of High end DACās use off the shelf USB implementations because they expect people to connect via AES/SPDIF or I2S
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Okay, so in your example a ābridgeā can be a Roon endpoint or a source to feed into your DAC or directly into an analog chain if itās a bridge/streamer?
Yes, I use a couple of Pi2AES/Pi endpoints, one feeds a Lampizator Amber 3, the other a BiFrost2.
I do that as much for convenience as quality improvement, but the difference is noticeable on the Lampizator.
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Not that anyone cares or Iām sure has purchased this DAC but orders are at 5.5 weeks.
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Thatās awesome man! What level did you get?
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I was looking at getting one so I was checking in the current wait times.
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Iām about to hit my 4th week of waiting on the Cyan, so I guess the delays are across the board.
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Super curious to hear more about that DAC. Iām trying to be patient and pull the trigger on the Spring 2 because the Cyan is at the perfect price point of impulse buy personally. Please do share your thoughts after some time with it!
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Will do, believe me I WANT to provide the feedback. 
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Iāve got an ex-demo Spring 2 KTE shipping on Monday that Iāll be comparing directly to my Cyan - Iāll be sure to post my impressions here.
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My Spring 2 KTE is in house. Itās absolutely massive. Unfortunately it has a noticeable scratch on the front panel that the seller didnāt tell me about, and while I did buy it at a discount, it wasnāt big enough for me to put up with it being damaged. Luckily, heās kindly ordering me a new one, so Iāll keep this one until that one comes in, then Iāll send this one back to him and pay the difference.
Iāll still use this one in the meantime. Itās been thoroughly burned in at the showroom and has the latest firmware, so Iāll let it warm up until this evening and then Iāll have a listen.
Update: I canāt get it to work. As soon as I install the USB drivers from the Holo website, I get no sound in windows. Iāve tried uninstalling/reinstalling and it doesnāt make a difference. The DAC works until I install the drivers, but if I donāt install them it shows up as an unrecognised device. I wonder if itās because Iāve previously used the Cyan on the same system. Firmware on the Spring 2 is up to date. Iāve emailed Kitsune.
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I remember reading about problem somewhere elseā¦ perhaps on the headfi threadā¦ if you donāt get a quick response maybe peruse over there.
Even after a restart no sound?
Nope. If I uninstall the drivers and restart, it works (I get sound) but Windows doesnāt know what it is. As soon as I install the newest Holo Audio USB driver it stops working, and a restart doesnāt make a difference.
Iāll have a look at the Headfi thread as per @rmsangerās suggestion.
Hmmm so yeah that sounds like a firmware issue for the usb in the holo itself, most likely messed up and needs to be reflashed/updated, will be curious to see what kitsune tells you, good luck on getting it functioning properly 
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@M0N @Phil_B It could be an unsigned drivers issue. I had the pretty much exact problem with my Gustard A18 DAC that I just recently hooked up.
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I guess a way to check would be to look in device manager and see what driver got installed, if it wasnāt signed there is a good chance windows just overrode it with the default windows driver
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I tried doing a quick search of the thread and couldnāt find anything under drivers or firmware. So donāt spend too much timeā¦ I remember reading it but canāt pinpoint the exact locationā¦ Sorry!
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Everything looks good in device manager. The firmware and USB driver versions are both correct and up to date. I donāt think Iām going to solve this one. The only thing I can think of is that this system has had the drivers for the Holo Cyan installed on it at one time, and maybe thereās a vestigial remnant of those left somewhere thatās causing an issue. Will wait on Kitsune.
Thankfully, the guy I bought it from has basically said to try it for a couple of days and if I donāt like it I can just send it back and he wonāt order me a new one, so if these issues turn out to be too much of a pain Iāll just get an Yggdrasil instead. Would really like to get this working properly though, or Iāll always
wonder.
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Just to try some random things that might work, make sure the dac is plugged directly into a 3.0 rear motherboard port, try a different cable, try setting the sample rate and bit depth to 24/96