I have been working on a Dual Mono TPA Buffalo build using the older ES9008 boards. I can't seem to get the boards to work in a mono setup (I think they were meant for stereo) since the firmware on the on-board controllers or the Volumite controller seems to only recognize each board as separate stereo.
I've decided to ditch those boards, and go with a dual mono build with the more recent IIISE boards. And I want to use the Sonore USB interface only for DSD. And use the S/PDIF Mux 4:1 board for PCM.
Now, due to problems with the ESS chip and how it sees PCM/DSD in a dual-mono setup (http://www.twistedpearaudio.com/forum/yaf_postst3052_DSD-problem-on-Doble-Mono-configuration.aspx
) I need to remap the inputs using a pair of Otto switches, as follows:
Here are photos of the build so far: https://flic.kr/s/aHsjWVkmmA
I am currently using JRiver from my HTPC connected to the DAC via BNC (modded on pc) for 24/192 playback. With JRiver I'll be able to create 2 zones, one for PCM via S/PDIF and the second for DSD via USB.
One other thing to note: my HTPC is about 25 feet from my DAC (which will require me to use a USB extender (http://www.icron.com/products/icron-brand/usb-extenders/cat5/usb-2-0-ranger-2212/
In consideration of the above, I have the following questions:
1. What would be the limitations in using the interface solely for DSD?
2. I know you advise using the USB interface directly to a BIIISE board (since it was designed that way), but will I encounter any issues by using the interface with the pair of switches?
3. Will I encounter problems using the USB interface with the USB extender?