amey, I have friends that have different DACs, and now are using the Ref Link. Specially if you like to listen Youtube. It really helps to improve the bad sound. When everything is neat, the Ref Link is doing nothing. But, as you do know, computer music comes with a lot of annoying noise, I do not know why. And the Ref Link cleans all the garbage, it really works, no matter of what kind of DAC you do have.
One friend is using the Big 7 Lampizator DAC and he is using a different USB kind. He is a Mac freak. He has most of his music in hi-rez. He is a wealthy person, and his preamp and power amp are Conrad Johnson. He has a pair of the big BF-212 matched with his CLXs...and he did not want to try the Ref Link. I told him that it was a big favor for me, because I did not have all the goods that he has in his system, and the product was for me, not for him. Saying this, he stated again, that he had a totally different approach with the USB, but OK.
We started to listen the Ref Link, with a Transparent digital Coax, from the Reference Link to the DAC, and a USB from the computer to the Ref Link. He bought three Ref Link units, one for him, another for his son and another for his father in Law.
When the recording is a HI-Rez, like DSD, you do not need it. But when there is a lot of digital garbage, its a must. It really filters the crap. And also, I do not know why, improves the stage. Its well built, and very easy to intall. I do like the product my friend.