Custom Audio Electronics Stereo Interface/Dual Mixer 2000's Silver

I had this is in a CAE rig, but had Bob built me something that worked specifically for what I needed.  This is interface and mixer all in one.  Two mixes I believe.  Bullet proof and very very hard to find.  You can see what he had in this prior to me...  but I had an H3000, 2290, Eclipse, Lexicon MPX and a TERC.  I did not build it as XTS did here in Nashville for me so I don't know much about it other than what is there on the diagram.