If you only plan to use usb to spdif then i think it doesn't matter you can order the cheapest one.Hello, do I have to order the 10 or the 10S? for my genelec, I just have to use USB to SPDIF
Thank you
However if your Genelec accepts balanced inputs and you want to be able to use that someday, then order the D10 balanced.
You can check the differences here
D10 Balanced - TOPPING AUDIO
