Is anyone using the nVi and Supernait in the same system? I know that the nVi has stereo analog outputs. Is it possible to connect the nVi to the Supernait in a way that the Supernait is used to amplify the front left and right channels while the nVi is used to amplify the center and surround channels? Does the Supernait have a home theater pass-through option? If not, does anyone know what the unity gain volume setting would be on the Supernait when using the nVi as a source?

I think SUpernait has the pass through option, read the manual. The n-Vi has pre-out outputs, no fixed analogical line-out. You could use the n-vi like a source ( for stereo system ) through Supernait using one of the n-Vi's digital output, connecting to the Supernait's internal DAC for STEREO mode. It's a good option untill you decide to add a dedicated CD-player.

No need to adjust the volume on the SUPERNAIT for unity gain; this can be set via relays in program mode. (I use this combination at home, by the way.)