OK good news i've found a solution !
Inside the kemper option output my SPDIF was setup on OFF hahaha it is working now !
And for ABLETON it is working with 9/10 indeed
the strange thing is that it seems that i only hear my DI signal and not the effect , i'll check my setting on the kemper
EDIT : ok i just had to select master stereo
It sounds amazing wow !
I have tried this configuration with the focusrite : https://ibb.co/VL0JkDZ
[Blocked Image: https://ibb.co/VL0JkDZ]
I've tried a lot of stuff with ableton but nothing is working
I can't believe that nobody put a tuto on the internet about this in 10 years. To be honest if i manage to solve this i will do a tuto for this.
I am not an Ableton expert but since the Focusrite treats the SPDIF inputs as inputs 9 and 10 you should select these as the inputs for the track you want to record on. From your screenshot it looks like you have selected inputs 1 and 2 for the audio track. Change it to 9 and 10.
Your clock sync settings look fine.
Ok i will try this
Could you configure Focusrite outputs to the ones that are plugged into your monitors?
I use a headphone
ok i have setup my focusrite routing like this :
Here is my Kemper
I'm in INTERNAL
Hello everyone , since i was not happy with my sound, i wanted to connect my Kemper into my audio interface (focusrite scarlett 2nd Gen (i8i8)) with a SPDIF cable in order to have a better signal.
This is what i did :
1- i have purchased this cable : Cordial CPDS1 CC
3- I have configure my Daw (Ableton live) to 44 hz since apaprently i have to do this with the kemper according to the tuto
4- I have configure my focusrite in SPDIF
5- I have plug my guitar in the kEMPER HEAD only (not in my focusrite since i have a SPDIF cable plugged)
6- here are my setting in Ableton live 11
My problem is that when i play the guitar i hear nothing 
there is no sounds
Maybe i should plug my guitar inside my focusrite instead of my Kemper, maybe my cable is not the right one , maybe i have to configure something with my kemper or in Ableton. Maybe it is impossible to use SPDIF with the Kemper. I'm lost here.
If someone has the answer i would love to heart from this !
NEW UPDATE : I have found a solution.
I did not realized that my SPDIF settings in my Kemper were on OFF and i had to select Master Stereo .
+ you have to use the 9/10 setting in Ableton
