diff --git a/wled00/bus_wrapper.h b/wled00/bus_wrapper.h
index 3426d124..8473938e 100644
--- a/wled00/bus_wrapper.h
+++ b/wled00/bus_wrapper.h
@@ -1177,10 +1177,11 @@ class PolyBus {
       if (num > 3) return I_NONE;
       //if (num > 3) offset = num -4; // I2S not supported yet
       #else
-      #ifndef WLEDMM_FASTPATH
       // standard ESP32 has 8 RMT and 2 I2S channels
+      #ifndef WLEDMM_FASTPATH
       if (num > 9) return I_NONE;
-      if (num > 7) offset = num -7;
+      if (num == 8) offset = 2;  // first use I2S#1 (so #0 stays available for audio)
+      if (num == 9) offset = 1;  // use I2S#0 as the last driver
       #else
       // ESP32 "audio_fastpath" - 8 RMT and 1 I2S channels. RMT 5-8 have sending delays, so use I2S#1 before going for RMT 5-8
       if (num > 8) return I_NONE;
diff --git a/wled00/const.h b/wled00/const.h
index da2da42c..24095e3a 100644
--- a/wled00/const.h
+++ b/wled00/const.h
@@ -44,13 +44,8 @@
       #define WLED_MIN_VIRTUAL_BUSSES 4
     #else
       #if defined(USERMOD_AUDIOREACTIVE)      // requested by @softhack007 https://github.com/blazoncek/WLED/issues/33
-      #ifndef WLEDMM_FASTPATH
-        #define WLED_MAX_BUSSES 8
-        #define WLED_MIN_VIRTUAL_BUSSES 2
-      #else
-        #define WLED_MAX_BUSSES 9           // WLEDMM I2S#1 is availeable for LEDs
+        #define WLED_MAX_BUSSES 9             // WLEDMM I2S#1 is availeable for LEDs
         #define WLED_MIN_VIRTUAL_BUSSES 1
-      #endif
       #else
         #define WLED_MAX_BUSSES 10
         #define WLED_MIN_VIRTUAL_BUSSES 0