Martin Audio AQ Series - Manual (Page 18)

Example 1: Horizontally distributed AQ5 loudspeakers are required to cover smoothly
from a minimum listener distance of 3m. The spacing required is 1.73 x 3m = 5.19m
for very smooth coverage.
Example 2: Horizontally distributed AQ12 loudspeakers are required to cover smoothly
from a minimum listener distance of 6m. The spacing required is 0.84 x 6m = 5.04m
for very smooth coverage.
The above calculations will provide very smooth coverage with approximately 3dB mid-
band sound pressure level summation. Wider spacing (up to 2 x the above figures) may
be acceptable where budgets are tight… but with slight tonal inconsistencies and less
useable summation.
10. AQ Series arrays
AQ Series loudspeakers may be arrayed to increase coverage or sound pressure level.
When arraying AQ8, AQ10 or AQ12 loudspeakers from ceiling brackets, allow approximately
100mm behind each loudspeaker for loudspeaker bracket clearance.
2 x AQ10 array viewed from above
Recommended maximum and minimum AQ Series loudspeaker centre-to-centre splay angles are
shown in the following table. Maximum splay angles will provide maximum coverage. Minimum
splay angles provide an element of summation – typically 3dB between loudspeaker centres.
Loudspeaker Horizontal splay angle
(Loudspeaker centre-to-centre)
Vertical splay angle
(Loudspeaker centre-to-centre)
Minimum Maximum Minimum Maximum
AQ5 *100° 120° 50° 60°
AQ6 45° 90° 45° 90°
AQ8 45° 90° 25° 50°
AQ10 45° 90° 25° 50°
AQ12 40° 80° 25° 50°
AQ15 40° 80° 25° 50°
All material © 2007. Martin Audio Ltd. Subject to change without notice.