Problems setting audio input capture

[WindsorCornez]

Greetings!

I just started with OBS and I can't figure this out. So, I'm capturing display, desktop audio and DAW using ReaStream.

Here's my PC's audio setup:
Desktop audio and DAW -> Scarlett 2i2 (1st gen) -> speakers. Both playback and recording are set from windows settings to Scarlett.
DAW is set to ASIO, obviously.

Here's how I set OBS:
There's "Mic/aux" and "Desktop audio" ready set when I first opened OBS.

"Mic/aux" works right out of the box, but has this weird thing where it behaves like safe recording (-40dB). Meaning, when I play the guitar plugged into Left Channel (1) it shows normal input levels on meter's Left Channel but also shows -40dB signal in Right Channel and records it into both channels. Same happens on Audio input capture. Why is that? This behavior shows in the image bellow. I tried to hard pan right, but it just raised the level of left channel to the right.

Desktop audio works as intended.
- Add -> Display Capture. Works as intended.

- Add -> Audio Input Capture -> Create New (rename = Reaper) -> Device (Analogue 1 + 2 focusrite USB audio) -> Filters -> Add -> VST 2.x Plug-in -> reastream-standalone -> linked it to Reaper send. Works.

Now here is where it gets tricky. I get both input signal from my guitar plugged into left channel (1) and the ReaStream signal. This I do understand, since for some reason OBS doesn't show me any other input devices to hook the ReaStream into and I can't hook it into Audio Output capture even when I was told that it's also possible, as long as it's not something I need to use at the moment. Well that doesn't work, ReaStream doesn't find the signal sent from Reaper when I hook it into Audio Output capture. Do I need to plug something in to one of the input devices for OBS to recognize it?

TLDR;
Why OBS is mixing channels? Why can't I see any more input devices?

 

[Zidakuh]

For Reastrem to work, you probably want to link it to an output channel inside OBS, instead of an input. That should also be significantly easier since windows usually have a couple output devices just sitting there doing nothing (think Realtek speaker output as an example)

Personally I link Reastream to my main output, which would be focusrite playback 1 + 2 inside OBS. Since OBS can't see ASIO outputs anyways, this works fine.

 

[WindsorCornez]

Thanks Zidakuh for the reply. I tried that, but it didn't work at all. ReaStream didn't get signal from Reaper when I tried to use output channel.

 

[Zidakuh]

It could be the identifier in Reastream not set properly? The name should match on both send and recieve.
That, or you can't hook multiple recievers into the send.
To be fair, I am not sure.

 

[WindsorCornez]

It could be the identifier in Reastream not set properly? The name should match on both send and recieve.
That, or you can't hook multiple recievers into the send.
To be fair, I am not sure.

I'm sure I used the same identifier. However, I might have understood the logic of OBS a bit wrong. I tried to use output that wasn't in use for the plugin, so I'll have to try it again.