QSC ISIS 102W User Manual download pdf (Page 4)

EN

4

Coverage Angles

102M/122M/152M- These models are

equipped with 60° conical waveguides. HF

coverage remains constant regardless of

cabinet orientation.

102W- Before mounting the loudspeaker,

determine the mounting orientation and

desired coverage angles. As supplied from

the factory, the loudspeaker’s coverage

angles are 150° (horizontal) x 50° (vertical)

with the cabinet oriented vertically. The

waveguide can be rotated to interchange

the coverage angles.

Rotating the Waveguide to Alter

HF Coverage Pattern (102W only)

1- Remove the grill. It is held in place by

eight cap head screws.

2- Remove the four waveguide retaining

screws. A #2-size Phillips screwdriver is

recommended.

3- Reach into the waveguide’s port and

pull gently to remove the waveguide. Be

careful not to damage the connections,

wiring, or the gasket between the

waveguide and the cabinet. The aluminum

spacer ring must remain in place.

4- Rotate the waveguide 90° clockwise or

counterclockwise and set it back in place.

Make certain the wiring is not stressed or

pulled loose from its connections when

rotating the assembly.

5- Before reinstalling the waveguide

mounting screws, lift the assembly a small

distance and make sure that the gasket

and spacer ring are properly in place.

Reposition, if required. Set the waveguide

in place and install the screws. We recom-

mend the use of removable thread sealant

to prevent the screws from loosening. Do

not overtighten.

6- Replace the grill. We recommend the

use of removable threadlocker to prevent

the screws from loosening. Do not over-

tighten.

Waveguide slot verti-

cally oriented: (102W

only; as shipped from

factory)

Waveguide slot hori-

zontally oriented: (102W

only; requires

waveguide rotation)

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