diff --git a/firmware/main.c b/firmware/main.c
index ec4bf7d..16ccff9 100644
--- a/firmware/main.c
+++ b/firmware/main.c
@@ -43,7 +43,7 @@ static void synth_init(void)
 	synth.channels[0].speed = 1153;
 
 	synth.channels[1].phase = 0;
-	synth.channels[1].speed = 23456;
+	synth.channels[1].speed = 1728;
 }
 
 static inline void synth_mix(void)