Stern External Volume Controller - Cabinet Mounting

Please note: 
This controller is NOT  compatible with non-USA (exported) SAM system machines!  Only USA (domestic) SAM system machines have the 6-pin Z connector required to install this unit. 
This volume controller WILL work on all Stern SPIKE & SPIKE 2 machines, both exported & USA domestic.
This handy device enables you to adjust the volume on most Stern SAM, SPIKE, & SPIKE 2 system pinball machines without opening the coin door.  The unobtrusive switch is mounted in the extra opening just below the start button (if a tournament button is installed in this opening it will have to be removed).  This button can be used anytime when the game is on or being played.

This requires the circle cutout available on Stern Spike 2 machines.  It is not compatible with Spike 3.  For spike 3, purchase the coin door mount volume control.