I forgot how to pump audio in and play through headphones

[USMC_Trev]

I'm having a total brainfart.
FM3 USB from Macbook (iTunes)
Devices set to FM3 for Output and Input in Preferences on the Mac
Out 1 copied to Out 2 - been playing through headsets no problem
I can see the USB IN 1 & 2 meters deflecting along the with music going out
I can see the USB Out 1 & 2 meters deflecting along with the music going out
I have Out 1 and 2 knobs cranked up full.

But I'm not hearing the audio from the Macbook. Not just iTunes, YouTube as well.
This is on any preset including BYPASS

I know this is something stupid, it has to be. Please help me underp myself.

 

[chris]

USB audio can't go through Out 2 and produce the FM3's sound at the same time. Out 1 is designed for this.

recently discussed: https://forum.fractalaudio.com/threads/solved-unable-to-hear-usb-audio-from-computer.159974/

 

[USMC_Trev]

OK then looks like I'm buying another cable. You can merge this or whatevs.