That was my point too. I know their website currently does not say which dac chips are used. It just seems that whenever they (not just Anthem, but in general, others as well) used, or planning on using a dacs that have better specs than the ones used before, or better than competitors, they would emphasize their choice/use of the better ones, but if it's the opposite way, they would not tell you which ones are being used.
Using Denon/Marantz as example, they went from the better PCM1792, 1791 and the 1795 to the PCM1690 and the AK4358 without saying anything about the change, but when they switched from those lesser chips to the AK4458 and 4490 in around 2016, they made a deal deal, including updating their product sheets to let people know which AKM chips are used. Then they changed from the AK4458 and 4490 (for legit reasons), but when they chose to use the PCM5102A that has lower specs, they again did not say anything or very little about it. Even when people asked, they were still told that it's the AKM chip, and only confirmed the PCM5102 much later.
Again, for the nth time, I am not too worry about the 93 dB SINAD of the 5102A, but am disappointed with the apparent lack of transparency.