A15BT Bridging Transformer
The Shure A15BT balanced transformer matches, bridges, or isolates balanced and unbalanced devices of different impedances and levels.
Impedance XLR Pin Connector (M): 7500 ohms or 600 ohms XLR Socket Connector (F): 33,000 ohms
Maximum Recommended Input Levels
Case Full magnetic shield, steel with gray enamel finish
Dimensions 19 mm (3/4 in.) diameter; 89 mm (3 1/2 in.) long