Suspended Installation - Yamaha IS1118(W) Owner's Manual

DISCRETE /PARALLEL switch
[Not applicable to the IS1118(W)]
Select the DISCRETE mode or the PARALLEL mode.
CAUTION
Do not change the DISCRETE / PARALLEL setting while the
speaker is in use.
Neutrik Speakon NL4 plug wiring
Connect the plugs as shown below.
CAUTION
Be sure to use proper speaker cable – not shielded instrument
or line cable – for all speaker connections.
1-
2+
NEUTRIK plug Discrete
1+
1–
2+
2–
The Speakon jack and barrier strip terminals are
NOTE
connected in parallel.
1+
2-
Parallel
LF1+ +
LF1– –
LF2+
LF2–

Suspended Installation

CAUTION
●
The strength of the suspension points on the speaker is
per point (maximum).
● Before doing any installation or construction work, consult
with an installation expert.
●
When choosing the installation location, suspension wire and
mounting hardware, make sure all are strong enough to
support the weight of the speaker.
● Some fittings may deteriorate over extended periods of time
due to wear and or corrosion. For optimum safety, the
installation should be checked thoroughly at regular intervals.
Yamaha cannot be held responsible for damage or injury
caused by insufficient strength of the support structure
or improper installation.
■ Using eye bolts for suspension
For optimum safety, make sure to carefully follow the
precautions below.
CAUTION
● Use only the supplied eye bolts.
● Use three or more eye bolts for suspended installations.
● Use the optional array frame if you intend to suspend a
speaker from another suspended speaker.
●
Install the eye bolts to multiple surfaces of the speaker, not
just one surface.
■ Eye bolt strength
Keep in mind that the strength of the eye bolt differs
depending on the suspension angle of the speaker. Make
sure that the load for each eye bolt is less than 740 kg
when suspending at an angle of 0 degrees, and less than
185 kg at an angle of 45 degrees.
CAUTION
When using the eye bolts, make sure that the suspension angle
is within the range of 0 to 45 degrees, as shown below.
0º (740kg)
CAUTION
Do not suspend the eye bolts as shown in the diagram below.
60 kg
45º (185kg)
90º (148kg)
IS1215/IS1118/IS1218 Owner's Manual
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