Cuboid model
Horizontal coverage
Vertical coverage
Cuboid 3 and 3TX
150˚
100˚
Cuboid 5 and 5TX
130˚
120˚
Cuboid 8
90˚
50˚
Cuboid 10
90˚
50˚
Cuboid 12
80˚
50˚
Cuboid 15
80˚
50˚
Cuboid coverage specifications
When installing loudspeakers, it’s worth taking a moment to understand how the
loudspeaker projects sound and how to get the best coverage in your venue by
careful aiming.
The coverage specs are useful for informing this important decision.
In any loudspeaker, the optimum output can be considered as the centre axis of
the high frequency driver - maximum SPL (Sound Pressure Level). The extremity
of the coverage is defined as the angle from the centre axis where the SPL drops
by 6dB to each side of the centre axis:
• 45° horizontally either side of centre for Cuboid 8, 10, 12 and 15
• 75° horizontally either side of centre for Cuboid 3 and 3TX
• 65° horizontally either side of centre for Cuboid 5 and 5TX
It therefore follows that the axis should be aimed at the furthest point of the
desired coverage area. This is also useful for controlling the amount of energy
hitting unwanted areas, such as a ceiling or wall, or ensuring SPL is not too high
for a listener near the loudspeaker (see page 14 on aiming and room coverage).
These specifications refer to the loudspeaker ex-factory - with the loudspeaker in
portrait, the horn is fitted to deliver coverage as shown in the table above.
If you intend to mount your Cuboid 8, 10, 12 or 15 in landscape mode (when
suspending horizontally from ceiling for instance), consider rotating the horn as
shown on the following page.
For Cuboid 3, 3TX, 5 and 5TX models the horn is not rotatable. The loudspeakers
can easily be mounted in either portrait or landscape as desired.
12/23
Cuboid
Loudspeakers
Loudspeakers
USER GUIDE
© 2022. Optimal Audio Group Ltd. (v2.2)
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Introduction
Aiming/
coverage
Overview
Horizontal
coverage
Wall mount
Connecting up
Ceiling mount
Matching
speakers/amps
Grille removal
Accessories
Badge rotation
Specifications
Coverage
Horn rotation
Safety info
