Shure A15BT | Bridging Transformer
Shure A15BT Bridging Transformer
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)
Key Features
- 33 kOhm primary: 600 or 7500 ohm secondary; may be used in reverse
- Balanced connections easily switchable to unbalanced
- Slender in-line XLR (F) to XLR (M) configuration
Technical Specs
Frequency Response
20 to 20,000 Hz
Impedance
XLR Pin Connector (M): 7500 or 600
XLR Socket Connector (F): 33,000
Voltage Ratio
Medium-impedance to high-impedance: 7500 :+6.4 dB / 600 :+17.4 dB
High-impedance to medium-impedance: 7500 :-6.4 dB / 600 :-17.4 dB
Case
Full magnetic shield, steel with gray enamel finish
Dimensions
19 mm (3/4 in.) diameter; 89 mm (3 1/2 in.) long
Weight
0.25 lb
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