Grant, is the functionality you are looking for Theatre bypass? From the user's manual. . .
(1) INPUT SELECT: This button will select the desired input, the input number corresponding to the numbering of the inputs on the rear panel. Each press of this button will scroll to the next successive input. Once Input 4 has been reached, the next press of the INPUT button will select the BYPASS input. Another press of the INPUT button will return the selection to Input 1.
(3) BYPASS MODE: The Bypass Mode allows the CAPRI to be installed in a home theater or surround sound system for optimal playback of stereo music sources when the multi-channel system is not in use. Pressing this button will allow a multi-channel processor to bypass the preamplifier functions of the CAPRI, with the volume controlled only by the external processor. The indicator light below the BYPASS button will illuminate yellow to show that the Bypass function is active.
3) BYPASS INPUTS: If the CAPRI is installed in a home theater or sound system, the Left Front and Right Front output connections from the surround processor should be installed in the BYPASS input connections. The CAPRI will only accept unbalanced RCA interconnects from the surround processor.
From the input section specs:
1 pair Unbalanced (RCA) Unity Gain (Bypass)
I'll email you the complete user's guide in PDF.
Guido
