To follow up on my post #18...
I got a Windows 10 box running and tested the hard panned right and left audio file on Windows with the NuPrime Asio driver (BTW, it is located under the uDSD support download folder, but not under the AVP/AVA support folder... Jason, you might want to add the driver inside the AVP folder as well).
Same thing as with the Mini. Centre channels output from the right channel only, and rear channels are linked to their respective front channels.
Tested the same file on the 7.1 DAC, and there is no channel bleeding happening. All is fine with the separation with the 7.1 DAC.
Hopefully, this can help NuPrime engineers pin point the problem with the USB DAC.
The AVP is in a class on its own. There is nothing on the market with a multichannel DAC, and at this price point.
If we can sort out the USB DAC, which sounds great, then it would be quite the unit.
And if NuPrime wants to hit a homerun, I would suggest these:
- Make the USB button on the remote shuffle between the InPlayer and the USB DAC. Right now, that button only choose InPlayer. Should be easy to do with a firmware update.
- Have the USB DAC access the crossover and EQ already there for the 7.1 DAC.
- Although it would probably mean a new unit design with an extra port, if it were possible to have access to the 7.1 DAC via USB as well. Then, I'm sure NP would sell containers of AVP! There is nothing on the market right now between the very cheap sounding multichannel U-DAC8 offered by miniDSP, to the much more expensive e28 DAC by Exasound. NP would have the middle ground all to itself.
- or, ... could the USB DAC be used for Mains R/L all the time, and the multichannel DAC for the other channels only? Get the best sound for stereo playing and still have access to multichannel DAC. Although, there must be a reason why it wasn't implemented like that in the first place...
My 2 cents....