diff --git a/src/mame/drivers/yunsun16.c b/src/mame/drivers/yunsun16.c
index 55680eb311f..d0418e9dc9c 100644
--- a/src/mame/drivers/yunsun16.c
+++ b/src/mame/drivers/yunsun16.c
@@ -624,8 +624,8 @@ static MACHINE_DRIVER_START( magicbub )
 
 	MDRV_SOUND_ADD("ymsnd", YM3812, 4000000)
 	MDRV_SOUND_CONFIG(magicbub_ym3812_intf)
-	MDRV_SOUND_ROUTE(ALL_OUTPUTS, "lspeaker", 0.20)
-	MDRV_SOUND_ROUTE(ALL_OUTPUTS, "rspeaker", 0.20)
+	MDRV_SOUND_ROUTE(ALL_OUTPUTS, "lspeaker", 0.80)
+	MDRV_SOUND_ROUTE(ALL_OUTPUTS, "rspeaker", 0.80)
 
 	MDRV_OKIM6295_ADD("oki", 1056000, OKIM6295_PIN7_HIGH)
 	MDRV_SOUND_ROUTE(ALL_OUTPUTS, "lspeaker", 0.80)