diff --git a/src/audio/internal.h b/src/audio/internal.h
index d01da280..bf90a495 100644
--- a/src/audio/internal.h
+++ b/src/audio/internal.h
@@ -7,21 +7,26 @@
 
 #if defined(VERSION_EU) || defined(VERSION_SH)
 #define SEQUENCE_PLAYERS 4
-#define SEQUENCE_CHANNELS 48
-#define SEQUENCE_LAYERS 64
 #else
 #define SEQUENCE_PLAYERS 3
-#define SEQUENCE_CHANNELS 32
-#ifdef VERSION_JP
-#define SEQUENCE_LAYERS 48
-#else
-#define SEQUENCE_LAYERS 52
-#endif
 #endif
 
 #define LAYERS_MAX       4
 #define CHANNELS_MAX     16
 
+#ifdef EXPAND_AUDIO_HEAP // Not technically on the heap but it's memory nonetheless...
+#define SEQUENCE_CHANNELS (SEQUENCE_PLAYERS * CHANNELS_MAX)
+#define SEQUENCE_LAYERS ((SEQUENCE_CHANNELS * LAYERS_MAX) / 2) // This should be more than plenty in nearly all circumstances.
+#else // EXPAND_AUDIO_HEAP
+#if defined(VERSION_EU) || defined(VERSION_SH)
+#define SEQUENCE_CHANNELS 48
+#define SEQUENCE_LAYERS 64
+#else
+#define SEQUENCE_CHANNELS 32
+#define SEQUENCE_LAYERS 52
+#endif
+#endif // EXPAND_AUDIO_HEAP
+
 #define NO_LAYER ((struct SequenceChannelLayer *)(-1))
 
 enum MuteBehaviors {