diff --git a/nx/include/switch/services/audren.h b/nx/include/switch/services/audren.h
index 5dfe3ba7..521d6463 100644
--- a/nx/include/switch/services/audren.h
+++ b/nx/include/switch/services/audren.h
@@ -24,10 +24,12 @@
 #define AUDREN_MEMPOOL_ALIGNMENT      0x1000
 #define AUDREN_BUFFER_ALIGNMENT       0x40
 
-#define AUDREN_REVISION_1 0x31564552 // REV1 [1.0.0+?]
-#define AUDREN_REVISION_2 0x32564552 // REV2 [2.0.0+?]
-#define AUDREN_REVISION_3 0x33564552 // REV3 [3.0.0+?]
-#define AUDREN_REVISION_4 0x34564552 // REV4 [somewhere after 3.0.0, possibly 4.0.0+?]
+#define AUDREN_REVISION_1 0x31564552 // REV1 [1.0.0+]
+#define AUDREN_REVISION_2 0x32564552 // REV2 [2.0.0+]
+#define AUDREN_REVISION_3 0x33564552 // REV3 [3.0.0+]
+#define AUDREN_REVISION_4 0x34564552 // REV4 [4.0.0+]
+#define AUDREN_REVISION_5 0x35564552 // REV5 [6.0.0+]
+#define AUDREN_REVISION_6 0x36564552 // REV6 [6.1.0+]
 
 #define AUDREN_NODEID(_a,_b,_c)   ((((u32)(_a) & 0xF) << 28) | (((u32)(_b) & 0xFFF) << 16) | ((u32)(_c) & 0xFFFF))
 #define AUDREN_FINAL_MIX_ID       0
diff --git a/nx/source/services/audren.c b/nx/source/services/audren.c
index d22d049d..1a2b7e06 100644
--- a/nx/source/services/audren.c
+++ b/nx/source/services/audren.c
@@ -5,6 +5,7 @@
 #include "kernel/ipc.h"
 #include "kernel/tmem.h"
 #include "kernel/event.h"
+#include "kernel/detect.h"
 #include "services/sm.h"
 #include "services/applet.h"
 #include "services/audren.h"
@@ -55,8 +56,14 @@ Result audrenInitialize(const AudioRendererConfig* config)
         return MAKERESULT(Module_Libnx, LibnxError_BadInput);
 
     // Choose revision (i.e. if splitters are used then at least revision 2 must be used)
-    // (TODO: abstract away differences between revisions according to provided parameters)
-    g_audrenRevision = AUDREN_REVISION_3; // todo: ?!?
+    if (kernelAbove400())
+        g_audrenRevision = AUDREN_REVISION_4;
+    else if (kernelAbove300())
+        g_audrenRevision = AUDREN_REVISION_3;
+    else if (kernelAbove200())
+        g_audrenRevision = AUDREN_REVISION_2;
+    else
+        g_audrenRevision = AUDREN_REVISION_1;
 
     // Prepare parameter structure
     AudioRendererParameter param = {0};