diff --git a/CHANGELOG.md b/CHANGELOG.md
index c20c58bb7..b840da913 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,9 @@
   - Fixes link rate for PCIe 3.0 devices on MacPro3,1
 - Resolve AppleIntelCPUPowerManagement Panic in Safe Mode
   - Applicable for pre-Haswell Macs on Ventura
+- Revert AppleALC 1.7.6 update back to 1.6.3
+  - Resolves audio issues on certain Intel HDEF devices
+  - Regression currently being investigated within AppleALC
 
 ## 0.5.2
 - Ventura Specific Updates:
diff --git a/payloads/Kexts/Acidanthera/AppleALC-v1.6.3-DEBUG.zip b/payloads/Kexts/Acidanthera/AppleALC-v1.6.3-DEBUG.zip
new file mode 100644
index 000000000..9a87f8e96
Binary files /dev/null and b/payloads/Kexts/Acidanthera/AppleALC-v1.6.3-DEBUG.zip differ
diff --git a/payloads/Kexts/Acidanthera/AppleALC-v1.6.3-RELEASE.zip b/payloads/Kexts/Acidanthera/AppleALC-v1.6.3-RELEASE.zip
new file mode 100644
index 000000000..a4354425f
Binary files /dev/null and b/payloads/Kexts/Acidanthera/AppleALC-v1.6.3-RELEASE.zip differ
diff --git a/payloads/Kexts/Acidanthera/AppleALC-v1.7.6-DEBUG.zip b/payloads/Kexts/Acidanthera/AppleALC-v1.7.6-DEBUG.zip
deleted file mode 100644
index 34075679b..000000000
Binary files a/payloads/Kexts/Acidanthera/AppleALC-v1.7.6-DEBUG.zip and /dev/null differ
diff --git a/payloads/Kexts/Acidanthera/AppleALC-v1.7.6-RELEASE.zip b/payloads/Kexts/Acidanthera/AppleALC-v1.7.6-RELEASE.zip
deleted file mode 100644
index e904d6336..000000000
Binary files a/payloads/Kexts/Acidanthera/AppleALC-v1.7.6-RELEASE.zip and /dev/null differ
diff --git a/resources/build/build.py b/resources/build/build.py
index 8924c1306..c4b15d48b 100644
--- a/resources/build/build.py
+++ b/resources/build/build.py
@@ -41,6 +41,9 @@ class build_opencore:
         support.build_support(self.model, self.constants, self.config).enable_kext("Lilu.kext", self.constants.lilu_version, self.constants.lilu_path)
         self.config["Kernel"]["Quirks"]["DisableLinkeditJettison"] = True
 
+        # Due to regression in AppleALC 1.6.4+, temporarily use 1.6.3 and set override
+        self.config["NVRAM"]["Add"]["7C436110-AB2A-4BBB-A880-FE41995C9F82"]["boot-args"] += "-lilubetaall"
+
         # Call support functions
         firmware.build_firmware(self.model, self.constants, self.config).build()
         wired.build_wired(self.model, self.constants, self.config).build()
diff --git a/resources/constants.py b/resources/constants.py
index c50da637e..b1e239152 100644
--- a/resources/constants.py
+++ b/resources/constants.py
@@ -36,7 +36,7 @@ class Constants:
         self.whatevergreen_version = "1.6.1"  #      WhateverGreen
         self.airportbcrmfixup_version = "2.1.6"  #   AirPortBrcmFixup
         self.nvmefix_version = "1.0.9"  #            NVMeFix
-        self.applealc_version = "1.7.6"  #           AppleALC
+        self.applealc_version = "1.6.3"  #           AppleALC
         self.restrictevents_version = "1.0.9"  #     RestrictEvents
         self.featureunlock_version = "1.1.0"  #      FeatureUnlock
         self.debugenhancer_version = "1.0.7"  #      DebugEnhancer