Definitive technology (DefTech) symphony 1
Mar 3, 2020 at 5:52 PM Post #121 of 121
I have not updated my firmware on them and they are still great headphones other than having to do the reset every now and then. I have a backup pair as well $50! If you end up figuring out that they do indeed have a firmware update do post about it here.

Ok, I will keep looking into it and let you know. I have tried contacting definitive directly
 

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