Looking for a reasonably priced good quality interconnect

You would need to burn/buy a CD of pink noise. You can generate it using a variety of software. Or just use the pink noise generating software and hook up your computer to the USB input. I’ve not done that yet, so I can’t speak to its difficulty. Or just put Tidal or Pandora on with a mix of music and you’ll be fine.

You don’t have to have the volume on the preamp turned up at all, but the pre should be on.

I've used blue jeans cables. They are solid performers, but I'd think you'd notice the improvement using 'fancier' cables. Equipment doesn't have to be expensive to notice the difference in cables, just resolving.

Wireworld Silver Eclipse 7

Thanks, Todd.

This may be a dumb question, but since both my optical cable and coax cable are plugged into the DAC does the burn in time count for both cables at the same time when I have music or pink noise playing?
In other words, will I be getting the benefit of coax burn in when I have the signal actually sounding in the optical input?

rvpiano - According to Mike at Morrow Audio, what matters is that there is signal flow into the outbound end of the cable.  IOW, as long as there is signal flow into each cable, you are burning them in.  I have no idea if optical cables even need burn-in.  Intuitively, I would think they do not.  But I am sure others who know more about this than me will chime in...