Matches, bridges, or isolates balanced and unbalanced devices of different impedances and levels. Male XLR to female XLR.

from $53.00

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:

  • 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)


Microphone Type
Polar Pattern
Frequency Response
Form Factor
Model Line
A15BT User Guide (PDF)