Krell Industries HTS 2 Instructions For Use Manual page 26

Remote Control Description,
continued
81 Menu Key
Use this key to access the System Setup and Configuration on-screen menus.
82 Mute Key
Use this key to mute the Home Theater Standard's output.
VOLUME
MUTE appears in the
front panel display.
83 Enter Key
Use this key to select menu items or to display the current system conditions.
84 THX Key
This key is reserved for future use, for units equipped with THX processing.
22 Krell Home Theater Standard