I apologize if these questions have already been asked and answered, but a quick scan thru this thread and the user manual didn't seem to discuss these things...
1) When using the digital AES outputs, does the audio signal remain in the digital domain all the way thru the processor from input to output or is there a conversion from digital to analog prior to volume controls and then from analog back to digital after the volume controls? A review on Cnet stated that all volume adjustments are made in the analog domain to avoid loss of bit depth. If true, it would seem that the signal must go thru a D/A and then A/D conversion to be output as digital. Either that or gain/attenuation must be applied in the digital domain.
2) If the signal actually stays in the digital domain all the way thru from input to output then how do they get around copy protection issues? I didn't think you were allowed to output an unencrypted digital audio signal from a copy-protected source. Yet, I see no mention of the AES digital audio outputs being disabled when feeding copy-protected audio to the processor via. HDMI. I must admit that I am not particularly familiar with AES/EBU digital audio interfaces and how it is used in consumer applications. Do they use a form of encryption to prevent copying? Do they just assume that nobody is going to try and capture digital audio from the AES outputs? Or, do they not even care since HDCP 1.4 and AACS were broken long ago? Note that these questions are irrelevant if the signal is converted to analog and then back to digital as copy protection is no longer required once you have left the digital domain.
P.S. The primary motivation of these questions is to understand how AES output and current copy protection interact, so that one could predict the future of the AES interface in consumer devices when newer copy protection standards are applied. I.E. will AES in consumer devices become useless when attempting to play back content using HDCP 2.2 encryption? This could be important information for someone considering the purchase of active speakers with AES/EBU digital inputs.
Last edited by HockeyoAJB; 03-14-2016 at 09:27 AM.