harman-kardon - CITATION-16 SERIES - STEREO AMP - SCHEMATIC [Circuit Diagram]

SCHEMATICS

Click on the pictures to Zoom In

  In order to operate in the Bridge mode first perform the internal modification.  Once this is accomplished speaker must now be connected between the left (+) terminal RED, and the right (+) terminal RED.  The negative Ground, of black terminals of each channel is not used.
  To accomplish this, use two banana plugs supplied, simply connect one lead of the speaker to one terminal of one banana plug, and connect other lead of the speaker to one terminal of the other banana plug.        Connect the two banana plugs as shown here, making sure that each end of the banana plug with the wire attached goes into the RED receptacle. 
The LED display in the bridge mode is the sum of each channels's individual display; that is; Stereo Mode 160W Chan-A, 160W Chan-B is equal to 320W total in bridge mode.