I had the MCT500 via din to the DA2 of my C2800. It was crisp, clean, detailed, and helped to create a very satisfying soundstage. And yes, SACD consistently sounded better than 44.1kz, streaming or redbook CD.
Because my standalone DAC is a Denafrips Pontus II 15th, I was very curious about the Onix transport DSD output via IIS. So, snagged one and gave it a try. Turns out I LOVE it - I think DSD through the R2R DAC produces the most analog sound with all the detail and soundstage I was getting with the DA2.
I sold my MCT500 (reluctantly) and now enjoy the freedom of the Onix IIS out. I’d recommend the $2400 Onix with a proven matched DAC (eg Denafrips) as a safe foray into SACD. I agree that steaming can easily be your every day, primary source. But physical media is still very enjoyable and satisfying - not dead yet!

