Heil Sound RS-1 12" Riser for PL-2T Overhead Broadcast Boom The Heil RS-1 is a 12" riser that allows you to mount the Heil PL-2T overhead broadcast boom behind equipment and still have easy access The 12" Heil RS-1 riser makes it possible to mount the Heil PL-2T overhead broadcast boom behind equipment and still have easy access The 12" Heil RS-1 riser makes it possible to mount the Heil PL-2T overhead broadcast boom behind equipment and still have easy access