Denafrips FPGA Firmware Update

I was hearing micro-distortions (which has been reported by some as well, not all) with the v1.4 in my Pontus II. I probably did not give it enough time for burn-in for the sound. I could not live with micro-distortions. 

I have a Pontus ll that is 2years old now. Have not updated the firmware. I love it's sound.

What the heck are micro distortions???

FWIW I found the v3.7 on my TP to be better than v1.0.  I also have an Iris that while if functions properly playing over I2S, I need to reset the pin out to switch between PCM and DSD.

I also found the USB is now better than the I2S (wasn't so with v1.0) so I am keeping v3.7.  I have a Lampizator Golden Gate and use that as a reference to judge the change from v1.0 to v3.7.  

I suggest giving it a try, but let it burn in for a few hundred hours before listening.

Also I was using NOS, now I find OS with sharp filter cleaner and more pleasing especially with 16/44 files.

@anzaanimalclinic Thanks for sharing your experience. I had reservations about TP running V3.7 fw at the beginning due to added brightness to my system even after hundreds of hours of burn-in, although it did give more details, focus, and transparency to the sound. A week ago I changed XLR IC from pure silver to copper (Oyaide TUNAMI TERZO XX V2), left it on 24/7 with V3.7. I listened to the system again this morning, it sounded much better, the brightness has been tamed. Yes, I also like the OS mode now as it is more dynamic and 3-D,  the sound in NOS mode in comparison is somewhat muddied and flattened.  I prefer slow filter for my system. It just sounds more natural.  This was done with USB connection only, I didn't compare with Iris DDC I2S connection since I don't like having to switch I2S settings between FLAC and DSD playback. I'll give the DDC away to a friend ;)  

I have a Terminator Plus.....tried every firmware available.....i was kind of happy with the latest firmware (3.7) as it was a mix of the first firmware and the 3.6 version........ but as many others, i have some micro distortions in the tweeter and mid drivers f my ATC50....not in all songs but i think was a random problem....burn in? maybe....but i could not live with those distortions....so I flashed with 1.0 and my dac came alive again!.....

if the micro distortions are a  common issue within many users why dont vinshine or denafrips check and correct this problem...i think they are doing many good things and i really appreciate that we can have the possibility of "playing" with different firmwares...but please you have to correct this kind of problems or else we will start to hate or dacs!!

rgds