I had both UltraRendu then upgraded to the opticalRendu, connected to my Holo Audio Spring 3 KTE DAC and didn’t hear a difference. The opticalRendu continued to have music dropouts and ran really hot, so I returned it just at the end of my 30 day trial window. No issues with the UltraRendu though.
Optical vs Ultra Rendu.
Is it worth the $696 more to go with the optical Rendu:
Over the standard (ethernet connected) ultra Rendu:
Has anybody compared these units, is there a notable difference in sound quality between these two? Both still connect to the DAC via USB.