Stereo from the external soundcard does not need BlackHole or Loopback?

[flyingb]

Hi everybody.
I am willing to use (and I already did once) a very simple setup.
I am streaming multiple instruments and mics (bass, guitar, vocals, and so on) using a plain old mixer.
I set the mix in the mixer (because that's what a mixer is for!), then I run the mixer R/L straight into the two inputs of my old Presonus Audiobox.

My tests in local show that it runs smoothly without any need for virtual gizmos like Loopback or Blackhole. I was told that this was not possible on a Macbook.

Am I missing anything?
I thought that this was only possible if you just use the first input of a soundcard, but I can use both. And it is perfectly stereo.

(OBS Studio, Presonus Audiobox, analog mixer, Macbook Pro M1 Mac OS Big Sur)

 

[Robtiel]

I also use an analog mixer and a simple usb interface. Stereo master-out into the interface and via USB into the Mac. Works perfectly on my iMac. I don't know what it's like with the new M1 MacBook, but I would think it will work.

 

[nottooloud]

Stereo works. More than that doesn't. Input directly from another program doesn't.