The simple Adapter (or DIY) is to connect the inner RCA with (+) Pin2, outer RCA with GND Pin1 and short (-)Pin3 to GND. That sends the "negative" half of the balanced amp on a very long vacation.
You can get yourself two 1to1 transformers...and connect accordingly (that's a challenge with the info given above for you to solve ;-)
Other solution ....2 OpAmps
cheers
brxl
You can get yourself two 1to1 transformers...and connect accordingly (that's a challenge with the info given above for you to solve ;-)
Other solution ....2 OpAmps
cheers
brxl