diff --git a/src/devices/bus/coco/coco_orch90.cpp b/src/devices/bus/coco/coco_orch90.cpp
index 2d80dcc1f4e..e5115240d70 100644
--- a/src/devices/bus/coco/coco_orch90.cpp
+++ b/src/devices/bus/coco/coco_orch90.cpp
@@ -10,6 +10,19 @@
     supporting stereo sound.  The left channel was at $FF7A, and the right
     channel was at $FF7B
 
+
+    Hidden Code exists in the ORCH-90 to produce a higher quality output.
+	Once you start the PAK, hit "SHIFT+ENTER" at the title screen.  Once you
+	are at command, type the following (playing the William Tell default):
+	"S" + "ENTER"
+	"P" + "SHIFT+ENTER"
+
+	The output will be cleaner due to code causing a change in CPU speed by
+	addressing CPU registers to run the 6809 at 2x speed.
+
+	"P" + "ENTER" will play at regular CPU speed.  The difference should be
+	very noticable.
+
 ***************************************************************************/
 
 #include "emu.h"