diff --git a/app/src/main/java/com/github/damontecres/wholphin/util/profile/DeviceProfileUtils.kt b/app/src/main/java/com/github/damontecres/wholphin/util/profile/DeviceProfileUtils.kt
index 2de5310e..a18d1805 100644
--- a/app/src/main/java/com/github/damontecres/wholphin/util/profile/DeviceProfileUtils.kt
+++ b/app/src/main/java/com/github/damontecres/wholphin/util/profile/DeviceProfileUtils.kt
@@ -203,6 +203,19 @@ fun createDeviceProfile(
     }
 
     // / Codec profiles
+    // Prevent 8-channel EAC3 passthrough in TS on certain devices
+    if (KnownDefects.eac3HlsPassthroughBug && Codec.Audio.EAC3 in allowedAudioCodecs) {
+        codecProfile {
+            type = CodecType.VIDEO_AUDIO
+            container = Codec.Container.TS
+            codec = Codec.Audio.EAC3
+
+            conditions {
+                ProfileConditionValue.AUDIO_CHANNELS lowerThanOrEquals 7
+            }
+        }
+    }
+
     // H264 profile
     codecProfile {
         type = CodecType.VIDEO
diff --git a/app/src/main/java/com/github/damontecres/wholphin/util/profile/KnownDefects.kt b/app/src/main/java/com/github/damontecres/wholphin/util/profile/KnownDefects.kt
index a4cd60c4..d2a3c042 100644
--- a/app/src/main/java/com/github/damontecres/wholphin/util/profile/KnownDefects.kt
+++ b/app/src/main/java/com/github/damontecres/wholphin/util/profile/KnownDefects.kt
@@ -14,6 +14,14 @@ private val modelsWithDoViHdr10PlusBug =
         "AFTKM", // Amazon Fire TV 4K (2nd Gen)
     )
 
+/**
+ * List of device models with known playback issues when 8-channel EAC3 is copied into MPEG-TS.
+ */
+private val modelsWithEac3TsPassthroughBug =
+    listOf(
+        "AFTKRT", // Amazon Fire TV 4K Max (2nd Gen)
+    )
+
 /**
  * List of device models that support H264 Hi10P 5.2, but don't advertise it
  *
@@ -30,5 +38,6 @@ private val modelsWithHi10P52Support =
 
 object KnownDefects {
     val hevcDoviHdr10PlusBug = Build.MODEL in modelsWithDoViHdr10PlusBug
+    val eac3HlsPassthroughBug = Build.MODEL in modelsWithEac3TsPassthroughBug
     val supportsHi10P52 = Build.MODEL in modelsWithHi10P52Support
 }