I recently did a cryo unit that was frozen by a cable maker here in Canada who does a lot of cryo. I did compare again and still felt it was very close and hard to detect. I thought maybe the cryo unit was slightly smoother sounding and this would be a benifit to some systems but maybe not to others. Very close though and I could not pick it in my blind test 100% of the time - maybe more like 60% to 70%. Bottom line is I still question if it is worth the $ and logistics of sending the untis for cryo.