I got to this party via the Ember tour.
That tour was quite the challenge due to all the different configuration options.
The Ember USB was the big surprise in that it helped my modest headphone system more than I would have thought.
Jason (pretty decent individual) and I talked. He suggested I try the Aero USB and thus began my journey into a total revision of the system.
I have an Acer laptop that I either use the cd player or go through Quobuz connected USB to a Mytek Liberty dac/headphone amp. I have the ZMF Auteur headphones with their 2K cable coupled to the noggin. This arrangement was alright but missing finesse and detail that I attributed to the source equipment. The Ember showed me that a different cable was most definitely in my future. It really smoothed the sound out and made it quite a bit more enjoyable.
Enter Aero. Where Ember gave me a more relaxed and fuller sound, Aero said "hey Ember, hold my beer" and took that relaxed fuller sound and threw in the best detail I've ever heard in this setup. So without changing any piece other than adding Aero, my system was totally changed. Can't imagine how Aero would sound on a top grade system. I don't have the ability to use USB in my main system so Jason (pdi) told me he would put together an Aero coax I could use between my cd transport and dac. He sent me a coax, rca ended and one BNC along with the USB cable. This turned into the present Aero Digital tour going presently (more on that later).
Music used for the evaluation:
Buddy Guy- Blues Singer
Trevor Pinnock- Complete Mozart Symphonies
Mitsuko Uchida- Mozart Piano Concertos
Herbert von Karajan- Complete Beethoven Symphonies
Keb Mo- Keb Mo
David Grisman and Tony Rice- Tone Poems
Yes- Yes Album, Fragile, Close to the Edge, Tales of Topographic Oceans
Stevie Ray Vaughan- The Sky is Crying (Mobile Fidelity Sound Lab)
I haven't had that many USB cables to compare but I do know what I like.
After hearing what Aero USB did for my setup it became pretty much a no brainer.
Highly recommend anyone looking to try something different in a USB cable to have this one on your must try list.
Don