JBL MTC-426MR (Pack of 6)

IN MOST CASES, NO BRACKETS OTHER THAN THE ONES INCLUDED WITH YOUR CONTROL400 SERIES SPEAKER ARE REQUIRED. Everything needed for most installations of these loudspeakers is provided with your Control Contractor ceiling speaker. However, a particular procedure that is sometimes used for installation into sheetrock (typically gypsum board) can be facilitated by the use of JBL’s optional pre-installation brackets before the sheetrock is installed.