K4306 balanced input

Is it possible to connect a balanced signal to the K4306? It works well with a phono input but I would like to use balanced xlr.

I have experimented with different connections and have found that using pin 1 (gnd) and pin 2 (+ve) of the xlr works. I had to isolate the psu.

Sorry, this is not possible. You will need a balanced to unbalanced converter.