8.3.4
NTS250 ARRAYS
a.
Using a 6 mm Allen wrench, remove the four (4) flat head screws
from the top panel of the uppermost array enclosure. These screws
are adjacent to the side Rigging Tubes, see figure to the right
.
b.
Thread four (4) user-supplied M10 x 1.5 x 38mm forged shoulder
eyebolts through the exposed mounting points, making sure the
eyebolt shoulders are firmly seated against the enclosure. Orient
each eyebolt so that the load will be applied within the plane of the eye.
c.
Attach the hoist mechanism and cables to the eyebolts with
user-supplied Screw Pin Anchor Shackles. Minimum allowable
Shackle size is 0.75 T, 9mm / 0.31 in.
d.
Hoist the array so that it is slightly off the ground. Confirm that array face is vertical. If
the array is not vertical, bring array down and adjust hoist mechanism and cables before
hoisting the array to the desired trim height.
8.3.5
POLE MOUNTING
Up to two (2) NTS250 subwoofers may be used as a base for pole-mountable loudspeakers. In this
configuration a 35 mm/1.38 in diameter loudspeaker pole is inserted between the NTS250s pole cup
and the pole cup of the loudspeaker. The pole may be a fixed length or height adjustable. In either
case it must be rated to support the weight of the pole mounted loudspeaker.
EAW’s model SPM100 height-adjustable pole is an ideal
companion, see figure to the right. To use:
a.
Stack up to two (2) NTS250 loudspeakers on a level,
stable surface.
b.
Insert the SPM100 pole in the NTS250’s pole mount
cup.
c.
Remove the pole’s Quick Release Pin from its stored
position and loosen the clamp handle.
d.
Raise the inner pole to the desired height and insert the
Quick Release pin in the nearest through-hole.
e.
Lower the inner pole so that the pin is resting atop the
clamp mechanism.
f.
Tighten the clamp handle so that the inner pole cannot
easily rotate. Do not over-tighten; the Quick Release
Pin should bear the weight of the pole-mounted
loudspeaker.
CAUTION:
All enclosures must be securely pinned together. Be sure that the subwoofers are
stabilized and secured from falling over or being accidentally pushed ove
r.
Page
17
REMOVED
FLAT HEAD
SCREW
USER SUPPLIED
SHOULDER
EYEBOLT
SIDE
RIGGING
TUBE
STEP 1
INSERT
THE QUICK
RELEASE
PIN
STEP 3
HAND TIGHTEN
POLE CLAMP
STEP 2
LOWER TOP
PORTION OF
POLE UNTILL
WEIGHT OF
ARRAY IS
SUPPORTED
BY QUICK
RELEASE PIN
AGAINST
CLAMP
POLE INSERTED
INTO FRONT
15 DEGREE
FORWARD
TILT ANGLE
MOUNTING
HOLE
