diff --git a/src/gui/presets.cpp b/src/gui/presets.cpp
index 16ef7d56..e6aa56e7 100644
--- a/src/gui/presets.cpp
+++ b/src/gui/presets.cpp
@@ -1106,7 +1106,7 @@ void FurnaceGUI::initSystemPresets() {
   ENTRY(
     "Commander X16", {
       CH(DIV_SYSTEM_VERA, 1.0f, 0, ""),
-      CH(DIV_SYSTEM_YM2151, 0.5f, 0, "")
+      CH(DIV_SYSTEM_YM2151, 1.0f, 0, "")
     }
   );
   ENTRY(