Apologies for the late reply. Yup it was returned last Saturday. A fast 9 Days turnaround from HK to Texas to HK. Awesome customer's service from Alex at Cavalli.
I have been literally listening non-stop.....Sensational sounding especially with the Abyss. I have not heard any of the Stax headphones yet, and may change my feelings further down the road! But in concert together, the LAu and Abyss sets new levels of sonic bliss for personal audio. I have been looking at ways to further improve my desktop system and yesterday decided to buy the Isotek Evo3 Aquarius power conditioner. I chose this model as it works passively because I find most active ones rather artificial sounding.
In Hong Kong, many die hard audiophiles shoe horn 300k to half million home system into a 120-200 sq. ft room and make it sound good. The LAu and Abyss is very reminiscent of these systems, less the visceral impact.
Very happy indeed thus far, and worth every penny.................