I am looking for alittle help with a matrix system.  We have recently acquired a eclipsemedian system and I am currently programming it for a show and I am trying todo something that is proving tricky. 
I want to connect an external loudspeaker to the EXT-1 output on the rear audio connector of the V-series panel and send audio from any port on the matrix to the EXT-1 loudspeaker.Example: Audio in on matrix port 1 (4wire direct) should be routed to the EXT-1 aux-out on the rear of the V-panel connected on port 14.I do not want to run a second cable to the panel. 

The simple answer to your question is YES – set the DSP Audio mixer onyour panel to route audio from the matrix feed to the panel to be routed to theEXT #1 port of the panel (see attached)  However – The panel only has one mono audio feed from the matrix that meansALL audio sent to the panel is mixed at the matrix end before being sent to thepanel (see attached) Hence when you set your DSP mixer and select to listen to “youraudio” input on port 1 – this will get routed to the EXT#1 connector of your panel However is somebody – keys to talk to your panel their voice willbe mixed with audio from port -1 and both will be heard on the Ext1 connector.  The only way we can arrange for a stereo feed into the panel is tofit an AES-3 daughter card into the panel and also fit the AES-6 interface (3U)into the median matrix or into a IMF-3 frame.