It has been argued that cd isn't HI Rez and I certainly agree that it is not. An original cd when compared to sacd without any enhancements lacks harmonics. However with enhancement applied and played in my BCD-1, harmonics exceed that of sacd.
I believe this is because the BCD-1 has the ability to separate instruments from a homogenous recording.
An idea occurred to me last night. Maybe I can record a cd with enhancer applied that increases cd harmonics when played on an ordinary cd player or perhaps even greater harmonics through the BCD-1. Don't know if it will work but will give it a try. I will need someone to verify the results if it does work.