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2.1 – Rotating the HF waveguide
The high frequency waveguide of the M-C12 can be easily rotated to provide appropriate
dispersion in both portrait and landscape formats.
By default, the M-C12 ships from the factory with the dispersion pattern 40° horizontal
x 60° vertical when the loudspeaker is used as a stage monitor.
To rotate the waveguide:
1. Follow step 1 in the servicing chapter (Chapter 7) to remove the grille.
2. Using a 4mm Allen key, remove the two M5x50 socket cap screws that secure the
waveguide. Ensure that you collect both the spring washers and the flat washers
as well as the machine screws.
3. Lift the waveguide up from the drive unit to rotate through 90 degrees to the
desired orientation – if the embossed logo in the waveguide is at the bottom, then
the narrower 40° dispersion is left-to-right.
IMPORTANT NOTE – BE SURE TO ROTATE THE WAVEGUIDE NOT THE DRIVER
ITSELF.
ADDITIONALLY, ENSURE THAT THE MESH COVER FOR THE HF THROAT
REMAINS IN PLACE WHEN RESEATING THE WAVEGUIDE.
4. Once in the correct orientation, replace the M5x50 socket cap screws and
retighten.
5. Replace the grille.
60°
40°
M5x40
socket cap screws
Page 7 of 27
Logo in this position indicates 60° H x 40° V
when used as a wedge
M-C12 User Manual
v2 November 2019
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