Ward-Beck in-line Impedance Converters allow 75 Ohm coaxial transmission of AES/EBU digital audio signals.The conversion transformer changes a balanced 110 Ohm signal to an unbalanced 75 Ohm signal on a BNC type connector.

The IMP-1F/10 is an in-line transformer that is equipped with a single BNC to a single female XLR, and is also equipped with a 10dBu loss pad.