Overview
Shure A15BT Bridging Transformer
Matches, bridges, or isolates balanced and unbalanced devices of different impedances and levels. Male XLR to female XLR.
Description

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.
Features
The A15BT can be used to:

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 (example: Shure SCM268 Mixer)