El Shmuel

Alright, I realized what the problem was. I had to set the eq to my Voicemeeter Outputs for them to work. Now it is working. Forgot that Voicemeeter might affect the eq'ing. Thank you for help, Petrus!

I uninstalled APO and reinstalled version 1.1.2. I tried to back up Peace files but after the installation wizard notified "backup complete" I didn't see my old configs in Peace. Why might this be?

Pre aamp slider isn't changing anything. So, like you said, APO isn't working. Only the devices plugged to UMC22 have "USB" in their names. It looks like you did everything alright for the UMC22. After testing the 3 "Install as" settings you might set it back on "SFX/MFX" and try the unchecked "Use Original APO" checkboxes. But also try this unchecking with "LFX/GFX" and "SFX/EFX". Tested and didn't do anything. Should I try to reinstall Peace and APO?

I have Sennheiser HD 560s headphones, a Behringer XM8500 mic and a Behringer UMC22 interface. I wanted to use Peace to add more bass to the HD 560s or to try the Harman Target curve by Oratory1990. I also wanted to try and EQ the mic to sound like the Shure SM7B (just for fun, I don't care if it isn't perfect. Sounds better on Julius Krause's tutorial and also to my own ears. (link to the tutorial)) I got the mic EQ working. However, I can't get the headphone EQ to do anything. I have enabled automation...

*So after installing Equalizer APO onto the HD 560s it can't be manipulated by Equalizer APO (thus Peace)? * This is the case, yes. My HD 560s are connected to the umc22 with a 6,5 mm jack. UMC22 uses common Windows drivers. I tested all the 3 settings of Install for the headphones again. Didn't do anything. My APO EQ is ver. 1.3.2. HD 560s are not digital in any way so they don't have dedicated drivers. Yup. I have disabled early Windows updates, they can mess up settings badly so I usually update...

*So after installing Equalizer APO onto the HD 560s it can't be manipulated by Equalizer APO (thus Peace)? * This is the case, yes. My HD 560s are connected to the umc22 with a 6,5 mm jack. UMC22 uses common Windows drivers. I tested all the 3 settings of Install for the headphones again. Didn't do anything. My APO EQ is ver. 1.3.2. HD 560s are not digital in any way so they don't have dedicated drivers. Yup. I have disabled early Windows updates, they can mess up settings badly so I usually update...

I have Sennheiser HD 560s headphones, a Behringer XM8500 mic and a Behringer UMC22 interface. I wanted to use Peace to add more bass to the HD 560s or to try the Harman Target curve by Oratory1990. I also wanted to try and EQ the mic to sound like the Shure SM7B (just for fun, I don't care if it isn't perfect. Sounds better on Julius Krause's tutorial and also to my own ears. (link to the tutorial)) I got the mic EQ working. However, I can't get the headphone EQ to do anything. I have enabled automation...