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You think I am lying？ This is 125dB，and the datasheet is 131dB by the way! And in the AK4452, the 0dB is easily achieve 0.0004%! but the 0dB of ak4497 is 0.0007% even by using 2200uF cap for VREF!

No! The dynamic range (THD+N @-60dBFS), the AK4497 is much better, I had test one in 125dB, but the AK4452 just 115dB!

Musical, detail, sound stage, AK4497 better than AK4452

As I konw the M10 i found was use TPA6120 x2 , and the output impedance just depends on the output series resistor ! It is very easy to change it ! And also I don't think this is a performace spec, for opa the output impedance always very small(<1 ohm) ! some guys use the output resistor to...

I had research the AK4497 DAC for a few times, it's 0dB is worse then the AK4490, AK4493, even low-end AK4452! Can I say the AK4497 is worse then AK4452 ? I don't think so ! I had compared then and the AK4497 win in every way!

I had checked the internal PCB, this two design is a lot diferent, I think it is not the same design.

Hi Amirm, I think it is a good idea to test all the products! But as I know for AKM's chip, the 0dB signal is alway not the best performace, I think your test is not fair to AKM's chips, and which the spec in the user manual is allways the best condition (not 0dBFS), and for the music, 95%...