7 configurable directivity device – Nexo LS18 User Manual

Page 25

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C

ONFIGURABLE

D

IRECTIVITY

D

EVICE

Page 25/103

7 C

ONFIGURABLE

D

IRECTIVITY

D

EVICE

The GEO Wavesource controls dispersion of acoustic energy using an hyperboloid acoustical reflector
in the “coupling plane” (the vertical plane of a curved vertical tangent array) and a diffraction slot in the
“non-coupling plane” (the horizontal plane of a curved vertical tangent array). The patented
Configurable Directivity Device consists of bolt-

on flanges that alter the diffraction slot’s exit flare rate.

7.1

Installing & removing GEO’s Configurable Directivity flanges

GEO S12 are shipped in the 80° dispersion configuration;

120° flanges is an optional accessory.

To change dispersion in the non-coupling plane to 120°:

Remove the front grill (drawings below);

Remove the three TORX (5x25) screws per flange on each side of the GEO Waveguide
(drawings below);

Install the 120° flanges with the six TORX screws

Re-install the grid, being careful that the NEXO logo must be on the 12” loudspeaker
side.

REMOVING THE GRILL

REMOVING THE SCREWS

REPLACING THE FLANGES

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