When I upgraded my system I didn't know that made a difference, I just got a new DAC without thinking about it. But one day I was listening to music with my laptop I felt something wasn't right, I moved to my desktop which has an optical output and It sounded better. So I googled and found...

I'm looking at buying either the ISO REGEN or the SOtm tX-USBultra regenerator to help clean up my USB connection. Do these two devices do essentially the same thing? If anyone has listened to both before, can you share what each did for your sound?