A SUPERIOR BALANCED TO UNBALANCED CONVERTER AUDIO CIRCUIT
The circuit below eliminates the need for transformers and is easy to construct. Incoming balanced audio is changed to unbalanced with this nice little number. It is called a "Suprbal" and is quite widely used in professional audio circles. The power supply needs to be a dual rail type of around +/- 15 volts. The maximum allowed supply voltage is +/- 18volts. Input capacitors are used to prevent any DC on the incoming line from entering the circuit.