Shure A15LA Line Input Adapter - OPEN BOX CLEARANCE:
Convert Balanced Aux or Line Level to Mic Level

The A15LA is a 50 dB attenuator. Use it to connect a line-level or aux-level output from devices such as mixers, tape recorders, and CD players to a mic-level input.

The A15LA input can be connected to either a balanced output or an unbalanced output. If the output is unbalanced, connect the audio “hot” lead to pin 2 of the A15LA and connect the audio ground lead to pin 1 of the A15LA. Make no connection to pin 3 of the A15LA. Refer to the following diagram.

Specifications:
Frequency Response : 20 to 20,000 Hz±0.5 dB
Impedance:
    Input - 100 kΩ
    Output - 300 kΩ - Line Level to LO-Z Mic
Attenuation: 50 dB
Maximum Input Level: 40 dBV
Input: 3-socket female XLR
Output: 3-pin male XLR
Housing: Full magnetic shield, steel with gray enamel finish