I was looking at the manual with a view toward finding out how I could bypass the A16's Dac and have the processed binaural signal feed my own Dac and headphone amp. I was disappointed to see the Usb digital output on the front panel was non functional. Does anyone know if or when they plan to make that feature operational? Has anyone put it on their to-do list? It looks like it can output the processed signal by Spidf and toslink optical digital outputs on the back panel. Is this correct? Will these outputs give me the full 16 channel ATMOS? Finally, there is a USB outlet on the back panel which is described as a 16 channel digital input and a two channel digital return (Up to 24/96). Not exactly sure what they mean by a "digital return" in this context. Does that mean it can output the full ATMOS 16 channel binaurally mixed signal to an external dac or not? Manual does not seem at all clear here. I'm sure someone who already has an A16 would know the answer to this. Again thanks in advance for sharing.