Shure A15AS manual Specifications, Impedance

SPECIFICATIONS

Frequency Response

Flat, 20 to 20,000 Hz 0.5 dB

Impedance

Input (XLR Female): 1,000 

Output (XLR Male): 150 

Attenuation (switch selectable) 15 dB, 20 dB, or 25 dB

Case

Full magnetic shield; steel with gray enamel finish

Dimensions

19 mm (3/4 in.) diameter; 114 mm (4 1/2 in.) long

NOTE: The equivalent single series simplex-powering resistance is 215 ; this resistance should be considered in addition to any existing circuit resistance when using the attenuator.