Also, as you see, I have a basic Marantz NR-1508 For my AVR/Processor It has pre-outs for the left and right channels. Would you suggest a nice amp to use to get even more performance out of the ZU'S?
+1 on Poultrygeist's last comment - have you tried the Decware amp with the Zu's? I got the most magic when I paired my Decware Zen amp that I built with the Omens. Even then, my Zen amp built from the kit had solid a solid state power supply rather than the rectifier tube based power supply on the SE84UFO. I would imagine your Zen amp would sound even better.