Atlas Sound AH99-12ST - Manual (Page 5)

Specifications are subject to change without notice
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©2006 ATLAS SOUND LP Printed in U.S.A. 000606 ATS002386 RevA 6/06 PP
INSTALLATION INSTRUCTIONS
AH SERIES LOUDSPEAKERS
8", 12", AND 15"
5
INSTALLATION VIA MOUNTING BRACKET (INCLUDED)
General considerations and hardware recommendations
CAUTION:
AH series models weigh as much as 81 pounds (36.7kg) – model AH5040CD. A fall from
almost any height could result in serious injury or death.
Assure that the speaker is fi
rmly mounted to an
object that can handle the weight of the AH speaker. Remember that wind will add considerable torque
to the point of attachment. The mounting surface the AH speaker is being attached to should be able to
handle fi
ve or more times the weight of the AH speaker (7x recommended for locations subject to high
wind forces).
Whenever the loudspeaker is mounted to a surface using the bracket, the installer must ensure that the
surface is capable of safely and securely supporting the load. The hardware employed must be safely and
securely attached both to the loudspeaker and the surface in question, using only the mounting holes. A
general rule for soft surface installations (wood beams) is to multiply the corresponding working load limit
by 75%: the result will be an approximate working load strength.
Use thread locking compound for all installations.
CAUTION:
Mount the speaker such that the shear force is at a right angle to the mounting bolts, and
close to the connection, as shown:
When mounting the AH speaker to a solid surface use the proper bolts, washers, and lock washers
(Grade 5 minimum). Do not substitute mismatched bolts and washers.
The AH speaker may be mounted to a pole or scoreboard. For such mounting, contact the light pole or
scoreboard manufacturer for proper instructions.
If mounting to another surface, such as a beam, see the diagram on page 7 for mounting hole locations.
When in doubt contact a qualifi ed structural/mechanical engineer for approval of the mounting
materials and methods.
SHEAR FORCE
Lock Washer
TENSION FORCE
Flat Washer