English
4
IS1112(W) Owner’s Manual
Connections
Neutrik Speakon NL4 plug wiring
Connect the plugs as shown below.
Be sure to use proper speaker cable – not shielded instrument or
line cable – for all speaker connections.
The Speakon jack 1+/- of INPUT side at the speaker and
barrier strip terminals should be connected in parallel. For
details, see the wiring diagram on page 29.
Precautions for Pole Mounting
A full-range speaker system can be attached to the IS1112(W) by
inserting a pole to the pole socket of the sub-woofer. When you use
a pole mount, please keep in mind the following points:
• Improper handling can result in damage to the speaker or even
personal injury.
• Full-range speakers that can be mounted to the IS1112(W) are
IF2108(W) and IF2208(W).
• Use a pole no longer than 90cm (35.4") with an outer diameter of
35mm (1-3/8").
• When pole mounting a speaker cabinet, always use two or more
people.
• When pole mounting a speaker cabinet, avoid inserting your fingers
or hands between the pole socket and pole.
• Make sure to keep the speaker cabinet steady with your hands until
the pole is firmly and completely inserted into the pole socket.
Suspended Installation
• The strength of the suspension points on the speaker is
60 kg
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.
■
Using eye bolts for suspension
For optimum safety, make sure to carefully follow the precautions
below.
• Use only the supplied eye bolts.
• Use three or more eye bolts for suspended installations.
• 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.
When using the eye bolts,
make sure that the
suspension angle is within the
range of 0 to 45 degrees, as
shown at right.
Do not suspend the eye bolts
as shown in the diagram at
right.
NL4 plug
INPUT
OUTPUT
1 +/-
SUBWOOFER
FULL RANGE
2 +/-
FULL RANGE
UNUSED
Speaker Processor
Power Amplifier
INPUT
IS1112(W)
OUTPUT
IF2108(W)/2208(W)
CAUTION
2+
2-
1-
1+
NOTE
Yamaha cannot be held responsible for damage or injury
caused by insufficient strength of the support structure or
improper installation.
CAUTION
CAUTION
0º (740kg)
45º (185kg)
90º (148kg)
CAUTION
CAUTION
