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Installation
Remove the plastic cap from the threaded throat of the driver and screw
the driver into the horn until firmly seated.
Install the horn/driver assembly in intended location, referring to the
instructions provided with the horn.
Loosen the captive screw in the center of the plastic cover at the rear of the
driver, and open the hinged cover to expose wiring. Note the O-ring in the
annular housing groove.
Loosen the gland nut in the side of the driver housing enough to admit the
loudspeaker wire/cable. Alternately, a 1/2-inch conduit fitting can be
substituted for the gland nut. However, the sealing washer must be retained.
For the ID60DT, connect the loudspeaker wires to the "com" terminal and
the appropriate line terminal (25 V or 70 V). For the ID60D-8, connect to the
"com" and "8-ohm" terminals.
Tighten the gland nut securely and check that the O-ring is positioned
correctly before closing the clear plastic cover.
Low-Frequency Driver Protection
When frequencies below the low-frequency cutoff for the horn assembly
are fed to the driver, excessive current may be drawn by the driver. For
protection of driver, amplifier, and transformer (if driver with built-in
transformer is used), capacitor(s) in series with driver, or transformer primary
are recommended. Table I indicates recommended values. The values
Disortion Response - Plane Wave Tube (1 inch)
(6 watt input)
Impedance Response - Plane Wave Tube (1 inch)
www.electrovoice.com • Telex Communications, Inc. • www.telex.com
© Telex Communications, Inc. 02/2001
Part Number 38109-855 Rev A
Figure 1.
Figure 3.
shown are for 200 Hz. Values for other frequencies can be determined by
using the formula:
[
]
C
x 200
C =
200
f
For drivers without transformers: 8-ohm driver, 25 V - 100 mf 150 Vdc or
150 V non-polarized electrolytic, or two 150 Vdc electrolytics of two times
required value in series, back to back, for 70 volt lines.
H
o
n r
C
o
b
e r
e l f
I x
C
o
r b
l f e
x e
Table I. Sound Pressure Level for ID60 with Various Horns
7
0
V -
o
t l
L
n i
e
s
P
o
w
r e
I
m
p
e
d
a
n
c
e
C
a
p
a
6
0
W
8
3
o
h
m
s
1
0
3
0
W
1
6
6
o
h
m
s
5
1
5
W
3
3
3
o
h
m
s
2
7
5 .
W
6
6
7
o
h
m
s
1
3
7 .
5
W
1
3 ,
0
0
o
h
m
s
0
5 .
1
8 .
8
W
2
7 ,
0
0
o
h
m
s
0
2 .
Table II. Series Protection Capacitors for 200 Hz and Below
Disortion Response - FC100 Horn
Impedance Response - FC100 Horn
C
Values shown in the following table
200
f =
New Frequency
S
P
L
f
r o
1
W
@
1
M
B I
1
0
7
d
B
I I I
1
0
7
d
B
2
5
V -
o
t l
L
n i
e
s
i c
a t
n
c
e
I
m
p
e
d
a
n
c
e
C
a
p
m
f
1
0
o
h
m
s
8
m
f
2
1
o
h
m
s
4
m
f
4
2
o
h
m
s
2
m
f
8
3
o
h
m
s
1
m
f
1
6
6
o
h
m
s
m
f
3
3
3
o
h
m
s
Figure 2.
Figure 4.
a
i c
a t
n
c
e
0
m
f
0
m
f
0
m
f
0
m
f
5
m
f
m
f
2
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