Yeah, its pretty bad but I still use it with its annoying quirks and the performance is great when its working well. Still some dropouts here and there but still pushing.

1.72 version..... https://drive.google.com/drive/folders/1GZcdzkL9f6Ajfa8snryEI8l7ccff97Zi

Did you buy it new? Return it and get Singxer su-2. I owned U16 for a year and had terrible experience with it. It doesn’t have a single firmware that is bug free. The designer said U16’s Linux support is poor, but the windows support not well neither. Look for my history post in this thread for...

Flash on 1.61NFB. Download from here: https://onedrive.live.com/?id=636DC4E8060D66A1!380&cid=636DC4E8060D66A1 GSD setting. /Jan

Unfortunately, the U16 doesn't work for me. It runs for an hour or less, then there are dropouts - I have tested firmware so far: 1.40 1.40 PSA 1.58 1.61 & 1.61. NFB 1.77 The source is a Raspberry Pi4, with Volumio. DAC is the Gustard X16. If I connect the RPi4 directly to the X16, everything...

thanks, but sadly my MacBook Pro only has USB 3.0

Solving the problem with lip-sync delay in my case was easy, I switched the U16 to an USB 2.0 port. No more dropouts as well.

...and got it on sale for slightly over $500 on an 11/11 sale. But it did solve the issues I and many other encountered with clicks/pops, and dropouts. I did also connect the BNC from C16 the to my Audio GD R2R-1 and ABS/EBU from the U16 and did notice an improvement with the external clock that...

My only problems were with dropouts and faint pops after the U16 ran for about an hour. The dropouts occurred on an exact 30 second interval while running red book rips and would increase in frequency with higher bit rates. By cycling the unit off and then on it would go another 45 mins. to an...

Seems like 128MB is a healthy amount of buffer memory. With the Aurender I can hear tiny ticks (small dropouts I guess) at the start of 96K tracks. This stops after a few seconds until the next song is cued up for play (back to back). Seems the buffer memory doesn't have enough data at the...

...Have to use ASIO driver in Windows which is not dedicated playback. But I get better operational performance with ASIO. Using WASAPI the dropouts at higher sampling rates return. The U16 may work great paired with the right equipment and set to a certain mode of operation. Just seems one...

...1.4 & 1.71 and is more stable than 1.61 NFB on my system), I2S configuration is for HoloSpring DAC. I've never experienced any pops, clicks, dropouts, restarts at ANY sampling rate - using it as a Roon endpoint and I've used all possible sampling rates from 44.1 KHz to 705 kHz PCM and from...

@ProLoL Hmm... I am using with AGD R7 and no issues with 44K. 176K and 192K different story though as playback sometimes full of noise and dropouts at those higher speeds.

I still have occasional dropouts of signal from U16 after the installation of the 1.61_nfb firmware. On all outputs - I2S, SPDIF and AES/EBU. On higher rate files the dropouts are more frequent. The Gustard is fed from WB external HDD to Bryston BDP-1 to SOtM tX-USBUltra. Singxer SU-1 behaves...

My experience with Wireworld Ultraviolet 6.0 0.3M and Starlight 6 0.3M has been satisfactory. Starlight 6 at 1M , no dropouts but seemed a little incoherent at times (but that may have been expectation bias). Starlight 7 at 0.5M did not work at all with direction reversed :ksc75smile: but...

@PLGA On the R8 try adjusting the front panel Syn = 1. This mode setting is specifically for the I2S input and may help with noise and dropouts. Here’s a link to the R8 user manual: http://www.audio-gd.com/R2R/R8/R8EN_Use.htm

Do you feel there is an improvement with the ISO Regen on the U16?

...will ever fix the firmware to suit Linux, especially if they had problems with the previous model U12, as someone mentioned. U16 has grounded all outputs and inputs to earth, even the rca is grounded. That causes problems (dropouts) with ISO Regen, which can be solved with a bit of wire though.

Both cables need over 100 hours. My friend got an impact se and loves it.

...for the tip @FredA , i forgot about that option. I am currently playing music with the new ebay 2.1 HDMI cable i received this morning. No dropouts so far and i enjoy my setup very much. In 100-200 hours i'll have a better idea of the final sound. I have that cable + new usb audio sensibility...

That is correct WW Starlight 5.2 (red). My first HDMI cable that I picked it as it was the shortest cable I could find at 0.3m. And even using it today with the U16. Sounds the same as the Silver Starlight 6 in the same length. In generally, but not always, cables 0.5m and below sound good...

...at the time... Also, an older model Ultraviolet 5.2 at 0.3M to me was indistinguishable from the 0.3M Starlight. I also tried a 1M Starlight. I sensed some confusion in the soundfield, but that could surely have been 100% expectation bias as even at 1M I did not notice any dropouts or similar.

...played 192kHz OK. Also heard a few squeaks and squawks at the beginning of some songs with sampling rate changes. At 176kHz I can detect dropouts in the audio like samples are missing?? 44.1, 88.2, and 96Khz file seems just fine. Anyway, more firmware to come I am sure. The old Gustard...