Ok. Made a few chances. If you have AppleHDA_ALC293.kext in /L/E or /S/L/E, remove it
Repair permission and rebuild cache
Replace Config file to /EFI/Clover and DSDT.aml to /EFI/Clover/ACPI/Patched
E7450_audio.zip
No, what does it show under Status of DPCIManager?
If you have Windows installed, you could check under device manager/details/hardware ID
or with ubuntu live disk, dump codecID
According to your 1st post, it's Realtek ALC 270
Follow instructions from here to debug issue
gen_debug -sysprofile
plus
screenshot of Status with DPCIManager
Need to determine what codecID it has unless you already know what it is
No, leave the kexts in ../kext/Other, no need to move.
For the injector, launch IOReg
Look under PNLF/AppleIntelPanelA, you should see the injector. If not, run the permission fix and rebuild cache.
post your Sierra bootpack for review
Ultimately, you just need to
enable FixHeaders in Config under ACPI fixes
Remove SSDTs (Cpu0Ist + CpuSsdt)
Drop TableIDs (Cpu0Ist + CpuSsdt) in Config
Update to latest Clover 4369 (time of writing)
Update to latest Lilu.kext 1.2.1 (time of writing)