De-emphasis of CD audio over S/PDIF

Can anyone confirm that KTB properly applies de-emphasis of CD audio over S/PDIF, assuming the player doesn’t strip the flags from the subcode? The datasheet for the ES9038Q2M DAC confirms that the chip has the capability, but I can’t find anywhere stating that KTB implements it.

@Gouwa do you have any input?

can you detect by ear the difference between when it’s implemented and when it’s not ?

Yes I can, why do you ask?

because if it is so evident to the ears, why would you think a manufacturer will not implement it ? TB1 sound quality is already highly appreciated by audiophiles as it is now, so we should not bother