I have an old Dbx118 dynamic range enhancer that I brought a long time ago. I used it with records because in those days the dynamic range of records were compressed to get the max number of grooves per LP. I now have a CD player and am wondering if the dynamic range of CDs are compressed?Do not get this mixed up with compressing the file size. I think these are two diferent things.If anyone knows if I still should use this unit please let me know. Thanks