This was a hard to find manual. When I did find it , some sites wanted way too much for the file.
Owner-manual .com had it for a really reasonable price. Not only that but it was sent very quickly and was a quality scanned document, unlike some others I purchased from a different site.
Good job guys!!
Larry
Text excerpt from page 13 (click to view)
Using the headsets
Mono/Stereo selection (HME 100 only)
In general, you�ll receive a mono sound source so that the Mono/Stereo switch can remain set to �Mono�. When using a stereo intercom system, set the headset to stereo operation. Remove the ear cushion (u �Replacing the ear cushions�) from the earcup with the microphone boom attached and set the Mono/Stereo switch to �Stereo�.
Adjusting the volume
Exposure to loud sounds can cause hearing damage! Set the volume control to a medium value. Make sure that you can hear critical sounds such as warning alarms.