P82580 B
Sheet 4 of 8
INSTALLATION INFORMATION:
Horn speakers should be used in large and/or noisy locations. They are weatherproof and may be used indoors or outdoors. The horn
speaker has a built-in amplifier. It's volume controls should be set to provide horn sound pressure level (SPL) of at least 6 to 10dB for
paging, and 3 to 6dB for background music. However, the horn speaker's volume should not be set so high as to cause discomfort to
those closest to the horn. These devices should not be operated at volume levels loud enough to cause audible distortion. Operation
in this manner may result in damage to the unit. In some cases, use of multiple horns set at lower volume provide better sound
coverage, than one horn set at full volume. Horns should be mounted at least 15 feet above the floor, and angled downward.
See Tables 1 & 2 and Figures 8 & 9 as a guide to determine horn spacing, area coverage, and sound pressure level.
Although designed for continuous operation, the use of continuous tone signals at high volume is not recommended. While short tone
bursts should cause no problem, sustained operation in this mode may result in failure of the unit.
Table 1.
Ambient Noise
Level
(dBA)
Area Coverage
Per Horn
(Sq. Ft.)
Effective
Forward Projection
(Ft.)
Spacing
Side to Side Front to Rear
Quiet To Moderate
50-74
5,000
128
40 Ft.
120 Ft.
Noisy
75-85
2,500
64
40 Ft.
60 Ft.
Very Noisy
*
85-90 (SA-H5-B)
1,250
32
40 Ft.
30 Ft.
85-96 (SA-H15-B)
1,250
32
40 Ft.
30 Ft.
*
For very noisy locations (above 96dB), consult Wheelock for applications assistance.
NOTES
:
1. Mounting Height is 15-20 Feet.
2. Typical Mounting Angle (to Vertical) is 60 degrees.
Figure 8.
SA-H5-B Horn Speaker With 5 Watt Amplifier
Figure 9.
SA-H15-B Horn Speaker With 15 Watt Amplifier
Distance From Horn
(Ft. On Axis)
Distance From Horn
(Ft. On Axis)
CAUTION:
The total system wattage requirement should not exceed 85% of the system amplifiers rated output. The total system
wattage requirement is the summation of the wattage tap selections of all system speakers and horns.
