diff --git a/wled00/bus_wrapper.h b/wled00/bus_wrapper.h
index 72b4435e5b..8343a7c2ba 100644
--- a/wled00/bus_wrapper.h
+++ b/wled00/bus_wrapper.h
@@ -1190,7 +1190,8 @@ class PolyBus {
       #else
       // standard ESP32 has 8 RMT and 2 I2S channels
       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
       #endif
       switch (busType) {
         case TYPE_WS2812_1CH_X3:
diff --git a/wled00/const.h b/wled00/const.h
index 6ee8345182..88cba645fd 100644
--- a/wled00/const.h
+++ b/wled00/const.h
@@ -44,8 +44,8 @@
       #define WLED_MIN_VIRTUAL_BUSSES 4
     #else
       #if defined(USERMOD_AUDIOREACTIVE)      // requested by @softhack007 https://github.com/blazoncek/WLED/issues/33
-        #define WLED_MAX_BUSSES 8
-        #define WLED_MIN_VIRTUAL_BUSSES 2
+        #define WLED_MAX_BUSSES 9
+        #define WLED_MIN_VIRTUAL_BUSSES 1
       #else
         #define WLED_MAX_BUSSES 10
         #define WLED_MIN_VIRTUAL_BUSSES 0