I am having some trouble wrapping my mind around connecting a few things. I was wondering, would it be ok to connect R11 of the line receiver using a jumper wire to the - input of the preamp stage and then the - output of the preamp stage to R2 of the line driverusing another jumper wire? So that I have the line receiver feeding both inputs of the mic preamp and both outputs of the preamp feeding the single input of the line driver? I have provided a picture of my schematic and my small build. Perhaps you can help a little more! I am using a XLR Female at the front and a Amphenol 1/4" connector at the back.
https://s12.postimg.org/gb64e1zbh/Mic_Preamp.png
https://s12.postimg.org/gb64e1zbh/Mic_Preamp.png