Many Thanks , as I suspected , so I will try to figure the send pins to/from on each cable and configure the 2nd cable as a specific send to amp2 with no receive as a test to see if the splitter could be re-configured as the special item with #2 as the special , with only a send for channel switching(2 pins) & volume control (? pins) being altered from "Share status".
What is the interface voltage running from the amp to the FVB Express switching mechanism? Like 10v DC? , If I knew what pins do what ,
I can configure a really cool interface stack. Am I out of my mind , or actually on to something? In my job , I visualize what "Could be" and make it real, but do not want anything but results.
I also have an XT Live if you are dole ling out schematics for Spider II 12"-75w units and XT Live boards , I could config a solve & advise.
I read these for spa PC boards for a living and that stuff is AC 120v and 230v so I am not going to risk blowing a low voltage switching sub stack in the pedal if I can help it..
The product is stout, performs as advertised and contrary to what I read here , if not powered up on a below 108 volts to 115v supply , continues to function normally for years.
A stereo option with a specially wired splitter so standard CAT5 cables could be used on any floorboard could be a reality. if you can forward Schematics , I will happily share.