Denafrips FPGA Firmware Update

In case there are any Denafrips DAC owners out there that are not aware of the FPGA Firmware Update, here's the link:

I did the update on my Ares II earlier today and am currently enjoying the results.  It is definitely an improvement without question.

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I just noticed something. Right after I installed the update a while back the Phase button was off which I always had on. Today, it hit me, I wondered if the update sort of put all settings back into a default state so I double checked to see that the OS filter was set to Slow, as Fast sounds too bright to me, and sure enough the Fast filter was on! Now I need to listen some more. That has to be part of why I feel the new update has increased the treble more than I like. You all might want to double check your filter setting.

@figuy the same happened to me. A day after the FW upgrade I saw that it had changed to OS Sharp filter, instead of my preferred Slow filter. 

So I changed it to Slow filter (phase on) and continue to listen until yesterday evening - a 10 days period, working 24/7 - but no luck. The sound still was awful.

I have tried the NOS setting too but no luck there also.

Now, my Pontus II is shut off, waiting for the next FW update, the one that will restore all the Denafrips  famous sound :)

Yes, same here, 10-11 days with the fast filter on and didn't know! I'm not sure I find the sound awful necessarily but it's not where I think needs to be either. I've already moved some power cords around and rolled some tubes to help for now. Just missing the fullness and rich, smooth quality.

What do you say when someone turns off there dac and others love the new presentation of the update. That’s very confusing to hear.

Could it be system dependent, tubes or no tubes, British vs tipped up speaker. It’s a shame I don’t know if I fit in with the gear or people that love the update.


Is it for sure it will go back to the authentic old sound, does reversing update have a break in? Im sure it’s probably real but can someone explain update break in.