i hope I’m right here. We just started to use in-ear for our rehearsals and used the 2 aux channels from the mixer (Behringer xenyx x2442usb). 2 of us take the aux channel 1 & 2 the third guy uses the main out and goes from there into a seperate mixer (macki mix5). As the aux section is before the fx section, the effects are just on the main out but not on the aux channels.
Is there a possibilty to get the reverb from the mixer on the aux channels?
Your question appears to be unrelated to Audacity. You may do better asking on the Behringer forum (http://forum.music-group.com/forumdisplay.php?80-BEHRINGER) or a more general forum for “home recording” or similar, rather than here on the Audacity forum.
Normally for monitoring the full mix with effect, you would use the “Control Room” outputs. You will probably need a headphone splitter / headphone pre-amp to be able to run multiple in-ear monitors from the one stereo output (example: Behringer HA400 Microamp 4 Channel Stereo Headphone Amplifier).