Changing The Hf Waveguide - EM Acoustics R5 Product User Manual

2.3 – Changing the HF waveguide
The R5 is supplied with two waveguides for maximum flexibility – a narrow dispersion (80°
x 50°) and a wide dispersion (110° x 50°).
By default, the R5 ships from the factory with the dispersion pattern 80° horizontal x
50° vertical when the loudspeaker is in a portrait format.
To change the waveguide:
1. Follow steps 1 & 2 in chapter 2.2 to remove the grille and the waveguide securing
bolts.
2. Lift the waveguide clear of the enclosure – the drive unit is secured internally to
the loudspeaker, and as such the waveguide is free to be removed once the bolts
are removed.
3. Fit the alternative waveguide into the enclosure – note that there is a precise fit at
the throat of the waveguide with the aluminium mounting plate in the enclosure,
so ensure this is located properly before attempting to retighten the bolts.
4. With the waveguide in the correct orientation, replace the M6x16 button head
socket screws and retighten.
5. Replace the grille.
Locating hole in aluminium
mounting plate
Page 10 of 37
Locating step at
waveguide throat
R5 User Manual
v1 December 2023