Optical vs coax vs spdif

Wow thanks guys! I have some  Old audio quest YIQ – 3 75ohm composite video cables, I bet they would work in a pinch. Oh I should mention that the Marantz also has digital coax out. 

@kalali thanks 🙏 the radio station is giving 10 free cds from their library to anyone that comes in tomorrow, if your in dallas Texas stop by New York Sub I’m university park. The CD player is for the home system. Which is pretty badass. 
@lowrider57 the cables sound fine.  To be honest I was actually impressed with the soundstage but I haven’t listen to a CD on a high fi system in quite a while. Are usually listen to my turntable or my DAC with roon. I’m going to get a proper connection and use the AES output. I’ll let you know if I hear a difference 

@dtximages my restaurant is New York Sub. We’re at traditional New York deli but we source all of our meats from local ranchers in Texas and make everything from scratch including roasting smoking and curing meats, homemade pickles and ice cream. Etc 
try the smoked brisket pastrami 

@mofimadness thanks! I’m going to try the aes hookup. I’ll let y’all know