EM Acoustics EMS-81 compact passive loudspeaker - Manual (Page 8)

8
EMS Series User Manual
www.emacoustics.co.uk
SYSTEM SET-UP
Safety Considerations
Loudspeaker systems are potentially dangerous objects if used incorrectly. Please ensure that you read this
section fully, and contact EM Acoustics or your local dealer should you be in any doubt over correct operation
procedures.
Professional loudspeaker systems are capable of producing damage-inducing sound pressure levels, and hence
care should be taken when setting your system up, particularly when it comes to loudspeaker placement within a
venue. Damage to the ear can result from levels above 90dB under prolonged exposure.
Stand Mounting
The EMS-81 and EMS-121 include 35mm polemount sockets for stand mounting. When mounting in this way,
please consider the following:
• Ensure your stand height is locked off and the tripod legs are positioned so as to be stable.
• Check the weight loading of your stands before attempting to mount the loudspeaker.
• Do not stack a second loudspeaker on top of the stand-mounted one.
• Ensure cables are run so as to leave enough slack to enable neat wiring, and thus reduce the risk of the
speaker being pulled over. Loose cables should be covered or taped down wherever possible to reduce trip
hazards.
• If stands are being used outdoors, it may be necessary to add ballast to the base of the stand to prevent it
toppling over.
• When using poles on top of subwoofer systems, please observe similar precautions.
Ground Stacking
• Ensure that the floor or stage surface can withstand the weight of the system.
• Wherever possible, avoid high stacks and use ratchet straps to secure loudspeakers together. Please also
remember that vibrations from subwoofer systems can shake other loudspeakers out of place, which may
present a toppling hazard. The use of ratchet straps and non-slip material is recommended to prevent this.
Rigging and Suspension
There are a variety of different methods for suspending your EMS-81 and EMS-121 enclosures – please see the
detailed section on Page 9 for further information.
WARNING: The overhead suspension of loudspeakers is a very serious issue with potentially lethal
consequences should anything go wrong. Rigging should only be carried out by experienced