diff --git a/src/burn/drv/dataeast/d_dec0.cpp b/src/burn/drv/dataeast/d_dec0.cpp
index d66c333e9..f68bf32a4 100644
--- a/src/burn/drv/dataeast/d_dec0.cpp
+++ b/src/burn/drv/dataeast/d_dec0.cpp
@@ -3669,9 +3669,9 @@ static INT32 Dec0MachineInit()
 	BurnYM2203Init(1, 1500000, NULL, Dec0YM2203SynchroniseStream, Dec0YM2203GetTime, 0);
 	BurnTimerAttachSek(10000000);
 	BurnYM2203SetRoute(0, BURN_SND_YM2203_YM2203_ROUTE, 0.35, BURN_SND_ROUTE_BOTH);
-	BurnYM2203SetRoute(0, BURN_SND_YM2203_AY8910_ROUTE_1, 0.90, BURN_SND_ROUTE_BOTH);
-	BurnYM2203SetRoute(0, BURN_SND_YM2203_AY8910_ROUTE_2, 0.90, BURN_SND_ROUTE_BOTH);
-	BurnYM2203SetRoute(0, BURN_SND_YM2203_AY8910_ROUTE_3, 0.90, BURN_SND_ROUTE_BOTH);
+	BurnYM2203SetRoute(0, BURN_SND_YM2203_AY8910_ROUTE_1, 0.50, BURN_SND_ROUTE_BOTH);
+	BurnYM2203SetRoute(0, BURN_SND_YM2203_AY8910_ROUTE_2, 0.50, BURN_SND_ROUTE_BOTH);
+	BurnYM2203SetRoute(0, BURN_SND_YM2203_AY8910_ROUTE_3, 0.50, BURN_SND_ROUTE_BOTH);
 	
 	MSM6295Init(0, 1023924 / 132, 1);
 	MSM6295SetRoute(0, 0.80, BURN_SND_ROUTE_BOTH);