System Sensor SP100ADA Series Dual-transformer Speaker_Strobes - Manual (Page 2)

D400-55-00 2 I56-691-03
For example, Table 1 shows that to select a 1/4 Watt in-
put when a 25 volt amplifier is being used, slide the blue
lead onto post 3 and slide the yellow lead onto post B.
Similarly, to select a 4 Watt input with a 70.7 volt ampli-
fier, slide the blue and yellow leads onto posts 2 and A,
respectively.
Table 1 also lists the UL reverberant and anechoic output
sound levels for each transformer power tap on the
SP100ADA Series Speaker/Strobes.
CAUTION
Signal levels exceeding 130% rated signal voltage can dam-
age the speaker. Consequently, an incorrect tap connection
may cause speaker damage. This means that if a 25V tap is
selected when a 70.7V amplifier is being used, speaker
damage may result. Therefore, be sure to select the proper
taps for the amplifier voltage/input power level combina-
tion being used.
NEVER connect the yellow jumper to the posts numbered 1
through 6 or the blue jumper to lettered posts A or B.
Mechanical
Slotted head screws are included for attaching the speaker
to the electrical junction box. Insert the decorative filler
plugs supplied into the remaining two holes in the grille.
Mounting
See Figure 2. The speaker can be flush mounted on a 4" X
4" X 2-1/8" back box with a 1-1/2" extension ring, as fol-
lows:
A. Select the appropriate pair of diagonally opposite
mounting holes in the speaker grille.
B. Use the two 8-32 X 1-3/4" slotted pan head screws, pro-
vided, to attach the speaker/strobe to the back box.
C. Insert the decorative filler plugs (supplied) into the re-
maining two speaker mounting holes.
Table 1:
Figure 2:
1B 1A 2B 2A 3B 4B
2A 3B 4B 5B 6B 6A
90 87 84 81 78 75
93 90 87 84 81 78
4W 2W 1W 1/2 W 1/4 W 1/8 W
25 V
70.7 V
UL Reverberant
Anechoic
(dBA @ 10 ft.)
(dBA @ 10 ft.)