Specifications are subject to change without notice.
(0806) 833-62-253-60 u
TOA Corporation
www.toa.jp
TOA Corporation SC-651 2/2
hor
iz
ontal
ve
rtical
Polar Response
270
°
0
°
330
°
300
°
240
°
4000Hz
8000Hz
210
°
150
°
120
°
90
°
60
°
30
°
10
0
-10
-20
-30
-40
-40
-30
-20
-10
0
10
270
°
0
°
330
°
300
°
240
°
500Hz
1000Hz
2000Hz
210
°
180
°
150
°
120
°
90
°
60
°
30
°
10
0
-10
-20
-30
-40
-40
-30
-20
-10
0
10
270
°
0
°
330
°
300
°
240
°
4000Hz
8000Hz
210
°
150
°
120
°
90
°
60
°
30
°
10
0
-10
-20
-30
-40
-40
-30
-20
-10
0
10
270
°
0
°
330
°
300
°
240
°
500Hz
1000Hz
2000Hz
210
°
180
°
150
°
120
°
90
°
60
°
30
°
10
0
-10
-20
-30
-40
-40
-30
-20
-10
0
10
Frequency Response
(1W/1m)
Frequency
Sensitivity
[dB]
110
100
90
80
70
100
500
1k
5k
10k
20k
[Hz]
120
ARCHITECTURAL AND ENGINEERING SPECIFICATIONS
SC-651
The specified horn speaker shall be designed especially for
outdoor applications. The paging horn speaker shall be a
double re-entrant design suitable for paging and tone signaling
distribution. The speaker component shall be a compression
driver with a polyimide diaphragm to prevent deformation from
heat and improve low frequency characteristics. Power
handling shall be 50 W. Rated impedance shall be 16 ohms.
The sensitivity measured at 1m with 1 W of power applied from
500 to 2,500 Hz shall be 109 dB. Frequency response shall be
250 to 6,000 Hz. Horizontal and vertical dispersion at -6 dB
below the on-axis reference at 2k Hz shall be 55
°
(H)
×
45
°
(V).
The paging horn shall comply with the IEC IP65 standard for
dust and water resistance and operate within a temperature
range from -20
°
C to +55
°
C (-4
°
F to +131
°
F). The speaker shall
feature shock-resistant aluminum oval horn. The mounting
bracket, bracket holder and the horn flare shall be treated with
50-micron thick powder paint coating, and external hardware
(screws, bolts, nuts) shall be made of stainless steel. The
paging horn shall include an integral speaker cable, insulated
polyvinyl chloride type, with strain-relief, 6 mm (0.24")
diameter and 600 mm (2
3
.62") length.
Dimensions shall be 430(W)
×
297.5(H)
×
327(D) mm (16.93"
×
11.71"
×
12.87").
Weight shall be 3.4 kg( 7.50 lb)
The paging horn shall be TOA model SC-651.
