Tvad- FWIW, I brought my RAL to my friend's house and compared it to the AirSine on his Tact 2.2x and the results even shocked him. Taking into account this was not a long term test, the results were readily apparent and immediate in favor of the RAL. The bass was tighter and quicker, with the AirSine sounding bloated and lagging behind the rest of the music. The top end was much more extended with a great sense of air around instruments and vocals. Overall, the RAL was extremely balanced from top to bottom and made his system sound much more musical.
My 30 day audition period of the RAL is coming to a close and they are not going anywhere. They have sounded fabulous in my system. The AirSine was top on my list to comapre against the RAL and I did that today. I know it was not in my system, but I heard what I heard. I plan on trying the RAL Paradise interconnect for 30 days against my AQ Sky. I like to do things one at a time....