The VR-3EX has two built-in audio buses (a MAIN bus and an AUX bus). You can select the audio bus to output for each individual connector.

MAIN BUS: This receives all input audio as a group and sends it to output (main output audio).

AUX BUS: This lets you selectively choose and mix the input audio to send, and sends it to output. You can output different audio than the main output audio.

For example, you can use the (MAIN bus) at a live performance venue to output a mix of all input audio, and when recording or streaming a broadcast, you can use the (AUX bus) to output just certain specific input-audio streams.

• Reverb is not applied to audio on the AUX bus.
• You can align timing of the AUX bus audio and video. See “Aligning Video and Audio (Lip-sync)” for details.