My $.02.
Rather than modify anything, find yourself a good separate DAC. You have many to choose from and a lot of opinions as well. For the time being, for your PCM music you will use the digital output of your Oppo and play through the separate DAC. With any sound choice at all you should notice a substantial improvement in SQ. There are too many to choose from for me to make a suggestion of a DAC. I only know what I like and I do not know your budget. Do some research. Also, depending upon what and where you buy, you may have the option of listening to a DAC in your system before buying. Your SACD disks will still be playing through the Oppo.
Over time, if you are serious about digital, you will rip your CDs (and with the help of the Oppo--your SACDs) put them on a hard disk and send them directly to your separate DAC. The convenience cannot be beat and the SQ will increase noticeably as well.
Moreover, you will maximize your resale potential and also your upgrade potential.
Rather than modify anything, find yourself a good separate DAC. You have many to choose from and a lot of opinions as well. For the time being, for your PCM music you will use the digital output of your Oppo and play through the separate DAC. With any sound choice at all you should notice a substantial improvement in SQ. There are too many to choose from for me to make a suggestion of a DAC. I only know what I like and I do not know your budget. Do some research. Also, depending upon what and where you buy, you may have the option of listening to a DAC in your system before buying. Your SACD disks will still be playing through the Oppo.
Over time, if you are serious about digital, you will rip your CDs (and with the help of the Oppo--your SACDs) put them on a hard disk and send them directly to your separate DAC. The convenience cannot be beat and the SQ will increase noticeably as well.
Moreover, you will maximize your resale potential and also your upgrade potential.