User's Manual

CONFIGURABLE DIRECTIVITY DEVICE Page 17/62
7 CONFIGURABLE DIRECTIVITY DEVICE
The GEO Wavesource controls dispersion of acoustic energy using an hyperboloid acoustical reflector
in the vertical plane and a diffraction slot in the horizontal plane. The patented Configurable Directivity
Device consists of bolt-on flanges that alter the diffraction slot’s exit flare rate thus increasing the
horizontal coverage from 80° to 120°.
7.1 Installing & removing GEO’s Configurable Directivity flanges
GEO M620 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 (TORX15, drawings below);
- Remove the 2 TORX screws per flange on each side of the GEO Waveguide (drawings below);
- Install the 120° flanges with the 2 TORX screws
- Re-install the grid, being careful that the NEXO logo must be on the woofer side.
REMOVING THE GRILL ADDING THE 120° FLANGES