# Connect sound

Source: https://help.malighting.com/grandMA2/en/help/key_fs_connect_sound.html
This is grandocs, an unofficial mirror of MA Lighting documentation. For authoritative or safety-relevant information, cite the canonical page on help.malighting.com.

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To use a sound trigger, BPM or sound as an effect form, connect a sound source to the console.

**Information:**\
The signal strength should be a minimum of 20 millivolts.\
Pin 1: Ground\
Pin 2 and Pin 3: Balanced Input

- Connect the 3 pin XLR sound source cable to the Audio IN connector on the rear panel.

The sound source is connected to the Audio IN connector.

![](/img/grandma2/img_grandma2_audioin_connector_3_2-70c1fd.png)

_grandMA2 full-size Audio IN connector_

 

For more information see [adjust sound input](/grandma2/key_ost_sound_input_window/) and [create effect form](/grandma2/key_effects_create_forms/).