47 Labs PiTracer

I think there is an older Sony(XA7ES?)that had a similar operation(Internally), but the execution was different.

Yeah, you're probably right. I know I read something about it not long ago. I was in the room when it first debuted at CES. They were setting it up and I thought to myself "What the heck is that?" It's too bad the display can't be bigger. I know of a reviewer who prefers the Zanden combo to the PiTracer.