Shure A15LA Line Adapter, Converts Balanced Line Level to Mic Level, 50 dB Attenuation (A15LA)

The A15LA is an audio attenuator made by Shure. Its main job is to reduce (attenuate) a line-level or auxiliary-level signal by 50 dB so that it can be safely connected to a microphone-level input. This helps avoid overloading mic inputs when connecting gear that outputs a hotter (higher-level) signal.

Key Features

• Reduces the level of an audio signal by 50 dB, allowing a line-level or aux-level output to be connected safely to a mic-level input.

• Compatible with both balanced and unbalanced outputs.

• Input connector: 3-pin female XLR; Output connector: 3-pin male XLR. 

• Frequency response is very flat: 20 Hz to 20,000 Hz, ±0.5 dB.

• Input impedance: ~ 100 kΩ; Output impedance: ~ 300 Ω. 

• Maximum input signal level: +40 dBV.