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RE: Ok, then

On my setups I go all the way from J7 on the NC module to the input jacks with twisted-pair-shielded. The ribbon cables are completely eliminated.....as well as the OEM development board.
Most of the pins in the J7 connector are instrumentation-related and no longer needed/used in a final amplifier design, since it's all "integrated" with these particular modules.

In the case of the NC500 modules....with separate SMPS supply.....you would use the appropriate ribbon cables. In that case there is important communication back/forth between the NC500 module and the SMPS supply that might need to initiate a shutdown condition. The OEM development board in that scheme is different as it incorporates an instrumentation amplifier (for the extra voltage gain requirement) as well as local power supply regulation, and connectors for SMPS power, Vaux, Vdr, etc, etc.
I have also built a few of those setups, and that's currently my main stereo amplifier for my Magnepan's.

Dave.


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