Wow Gonk, glad you are around here for help. I really appreciate it!
Your response did help me understand some things but makes me have another question.
If the SACD filter is for 50,000hz/100,000hz and the human hear can only hear up to 20,000hz, then what the heck is that filter for?
It doesnt make any sense to me. (BTW,I'm not the most knowledgeable person in this area if you can't tell)

Thanks