Martin Audio C10.1C User Manual page 6

These brackets and their associated M8 socket head bolts are
supplied with the unit. The brackets will accept either eyebolts, or
8mm threaded rod.
Brackets may be mounted either vertically (for hanging) or
horizontally (for side fixing).
Bracket mounted vertically Bracket mounted horizontally
One of brackets bolts directly to the bass unit adding further to the
safety of the installation in case of fire. All three brackets must be
used.
Do not allow the CS10 or CS10T to be supported by a
suspended ceiling grid. These ceiling loudspeakers must be
attached to a secure part of the building.
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All material © 2007. Martin Audio Ltd. Subject to change without notice.