diff --git a/src/mame/audio/atarijsa.c b/src/mame/audio/atarijsa.c
index 658c021af12..34aa8fc0438 100644
--- a/src/mame/audio/atarijsa.c
+++ b/src/mame/audio/atarijsa.c
@@ -843,7 +843,7 @@ MACHINE_DRIVER_START( jsa_i_mono_speech )
 	MDRV_SOUND_ROUTE(1, "mono", 0.60)
 
 	MDRV_SOUND_ADD("tms", TMS5220C, JSA_MASTER_CLOCK*2/11) /* potentially JSA_MASTER_CLOCK/9 as well */
-	MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 8.0)
+	MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.0)
 MACHINE_DRIVER_END