I received the following contents. I have no equipment that will accommodate the usb cables. Unfortunately my SW1X DAC only accepts AES or RCA connections, and I could not get an SPDIF/RCA converter in time before I had to send the cables back.
The other thing is that neither my Jays Audio CDT-MK3 cd transport, nor Odyssey Cyclops Extreme Plus are broken in yet. I have very few hours on either. I used my NAT Audio Single HPS integrated for most testing. I assume that since I was the last leg on the tour that the cables are well broken in. I sill let them run for a couple of days before evaluating.
Ember RCA with KLE absolute connectors
Ember RCA one off for the tour with ETI Link connectors
Ember USB -
Ember XLR with rhodium AECO xlr connectors
And Aero Cu USB
Ember RCA with ETI Link connectors - They are very well made and very lightweight, which is what I expect from the Hapa brand. I streamed some tracks first and the sound was very precise but smooth at the same time. The piano tracks had some glare, but I do have horns so that's not surprising.
Ember RCA with KLE Absolute connectors - Same excellent construction, but these cables were a better fit all around. I could tell from the moment the music started to play. Piano tracks had the right tone and decay, and horns were more natural.
If I still had my Salk Pure BE-1 monitors, I think the ETI RCA's would have been a much better fit. It's not to say that the ETI's did not sound good, it's just that the KLE's fared very well with the tube integrated.
I conducted the same test with the Odyssey transistor amp (not broken in) and the results were almost the same, except the bass was somewhat tighter with the ETI RCA's. I could live with either cable because they are really great. However, I was on the Hapa tour that included the top of the line offerings from Jason and it is in another league. It should be due to the cost difference and materials.
Just as I shipped the cables off, I received a 432 EVO Aeon transport. I've a buddy that is lending me an SPDIF/USB converter. Too bad I did not get to test the USB cables. Maybe next time when I have everything together. I highly recommend these cables.