Your graphs look excellent but it appears that the test was for 96KHz but the card sample rate was set for 48KHz. The noise floor looks very clean. Any distortion in the dynamic range test is completely buried by noise from the less than ideal adc chip.
- yeah, RMAA setup was 24b / 96khz, for that test
- were does one select/check for sample rate? (using demo version, RMAA v6.0.5)