Connect a mono output from an FM tuner or receiver to the input of a microphone mixer
Connect a high-impedance microphone to a medium-impedance input on an audio recorder
Connect a balanced line-level output from a mixer to an unbalanced Aux-level input on an amplifier or recorder
Convert an unbalanced Aux-level output to a balanced 600 Ohm line output
The Shure A15BT Bridging Transformer can be used to connect balanced and unbalanced devices having different signal levels or impedances. Depending on the configuration, the A15BT provides a minor increase or decrease in signal level. The A15BT can be used to:
XLR Pin Connector (M): 7500Ω or 600Ω
XLR Socket Connector (F): 33,000Ω
Either end can be unbalanced by connecting pins 1 and 3.
From 33,000Ω to 7500Ω, 6.4 dB
From 33,000Ω to 600Ω, 17.4 dB.
19 mm (3/4 in.) diameter; 89 mm (3 1/2 in.) long