Originally Posted by Crion
The best working solution is a HD621 HDMI switcher connected to your HDMI sources (Be they Oppo 9x or HDI streamers). The 4xSPDIF modding is a hassle and will need to be redone on all multichannel sources, -pain.

I have a 4xSPDIF modded Oppo 83 and it works flawlessly on MCH music, Blurays, etc and has for the last couple of years. I would respectfully suggest a HD621 is more hassle---and expense. Of course the HD621 apodizes but that feature on most of my mch music and Blurays is useless.

Ken

Main: G68J, 5K2s, 5Ks, HSU subs, Pio 151FD, Dish VP722, Roku, Wadia I70, Anti Mode Dual Core, Oppo 103D Vanity Lite
Office: SBT, Berkeley Alpha DAC 2/MQA, Magico S3 Mk II, Boulder 2060, Lumin U1 Mini streamer, Roon.