WiiM into Outboard DAC

if you’re using ONLY the digital outs into an external DAC, there’s basically no real sonic difference between WiiM Pro and Pro Plus, and only a maybe, sorta, tiny one with Ultra via USB. Any changes are going to be way smaller than what your DAC/room/speakers are already doing.

@misstl Sorry, I had the Ultra. 

Thanks for all the responses...A friend is giving me a used Pro Plus, which seems the sweet spot to use as stand alone or with DAC, as I do not need the features of the Ultra, and this will be in a secondary system...

main thing is to enjoy the music, which the value priced wiims allow many more people to do who might otherwise not, and that is a big positive

that said, the ultra gives you a usb digital out, whereas the lower wiims do not -- i can’t imagine the wiims have a very good internal clock or a high degree of noise isolation, so as @retiredaudioguy says, it’ll depend on the quality of the downstream to handle the so-so quality digital input being fed to it

one thing is for sure, the lower wiims using their sole spdif digital output will have your dac relying on the wiims synchronous clocking... for higher end systems, hardly ideal, but for more modest systems and casual listening, likely no problemo

I have a Pro Plus and, in my experience, it responds in a BIG WAY, as a streamer only to external DAC to a linear power supply. I was shocked at how much it improved things. It's counterintuitive I think to spend almost as much or slightly more on a decent LPS, power cord and DC cable as the streamer itself but I've found it to be very worthwhile. YMMV, just basking in the mediocrity here.