has anyone tried PS Audio perfect wave duo

For what it's worth, I've used both "Itunes" and "Play" software on a Mac. I couldn't detect a difference. I use both toslink and usb connnections. I also cannot tell a difference switching between the two. I use Wireworld Ultraviolet High Performance USB Cable ($56 with shipping) and a Van Den Hul Optocoupler mk. II toslink cable ($119 with shipping)connected to an Airport Express.

Thanks Develyn50. I'm going to have to make iTunes work, I reckon. I seem to have heard good things about the Wireworld usb cable. J

Have others using the PW DAC noticed a bit of a "shadow" image on the touch display? I get a sort of half reflection of the volume slider beneath the actual slider. No idea whether this normal (eg, a lighting artifact) or not J

Just had a chance to test and hear the new large gauge Transparent Audio USB cable. It is awesome! It comes at a standard length of 5m which makes the setup of the units easy and flexible. It is said that it can be run up to 50 feet without loss of sonic quality. The 1-m cable sounds better than the acclaimed Belkin Gold Series and is quite affordable ($90/m).

Jdoris, the touch panel of the PWT that I had for evaluation was flickering slowly from the get-go. I also saw halos around the images that you might have experienced as "shadow" images. When I returned the unit to PSA I mentioned those observations with the hope they will be addressed in future releases.