ID30CT TELEX COMMUNICATIONS, ID30CT Datasheet
ID30CT
Manufacturer Part Number
ID30CT
Description
Audio Visual (audio Video), Loudspeaker
Manufacturer
TELEX COMMUNICATIONS
Datasheet
1.ID30CT.pdf
(2 pages)
General Product Description
The ID30C-8, ID30C-16 and ID30CT are heavy-duty
compression drivers for use in medium-power public address
installations.
The drivers employ rugged phenolic diaphragms, 1.5-inch
diameter voice coils and “rim centered” ferrite magnet
structures for long life and reliability under extreme operating
conditions.
A hinged cycolac rear housing for easy access and
connection to a sound system, via a BX conduit connector,
is provided together with a plug-in, field-replaceable
diaphragm assembly.
The transformer model (ID30CT) includes connections for
25-V and 70-V distributed systems and a screwdriver
operated power-tap select switch.
The exterior parts are injection-molded from polycarbonate,
and all metal parts have been tropicalized for resistance to
high humidity and fungus.
Ideal for both indoor and outdoor applications, these drivers
are well suited for any installation requiring rugged,
medium-power performance.
Architects’ and Engineers’ Specifications
The loudspeaker(s) shall be of the compression-driver type
utilizing
high-temperature rated, 1.5-in. diameter voice coil.
The loudspeaker(s) shall exhibit essentially flat power
response from 300 to 4,000 Hz with a smoothly rolled-off
response beyond. Their sensitivity, when mounted on a PH
horn, will be 107 dB (1 W/1 m) with a 500- to 5,000-Hz
pink-noise signal applied.
Specifications:
Frequency Response:
Power Handling, 8 hours, 6-dB crest factor:
Impedance,
Nominal:
Minimum, on Cobreflex Horns, Above 500 Hz:
Sound Pressure Level at 1 Meter, 1 Watt Input Average, Pink
Noise Band-Limited from 500 to 5,000 Hz:
Voice-Coil Diameter: .......................................... 3.81 cm (1.5 in.)
300-4,000 Hz, ±5 dB (see Figure 2)
30 watts (500- to 5,000-Hz pink noise)
ID30C-8 ...................................................................... 8 ohms
ID30C-16 .................................................................. 16 ohms
ID30C-8 ................................................... 7.5 ohms (850 Hz),
ID30C-16 .................................................. 14 ohms (850 Hz),
see Table I
a
rugged
phenolic
diaphragm
and
a
The loudspeaker(s) shall be capable of handling a 30-watt,
500- to 5,000-Hz pink-noise signal with a 6-dB crest factor
for a period of eight hours.
The loudspeaker(s) shall have a diameter of 10.6 cm (4.2
in.) and a depth of 13.2 cm (5.2 in.). They shall have a 2.41
cm (0.95 in.) throat opening with a 1 3/8-18 thread for
mounting.
The loudspeaker shall be the ID30CT, which includes a 70-V/
25-V line-matching transformer (see Table II) and weighs no
more than 2.1 kg (4.5 Ib), and the ID30C8, which has a
nominal impedance of 8 ohms (or ID30C-16 with 16-ohm
impedance) and weighs no more than 1.6 kg (3.5 lb).
Magnet Weight: ................................................... 0.28 kg (0.63 1b)
Magnet Material: .................................................. Strontium ferrite
Flux Density: ................................................................. 1.00 Tesla
Construction:
Dimensions,
Net Weight,
Shipping Weight,
Recommended Horns:
Rugged weatherproof finish for outdoor use
Diameter: ...................................................... 10.6 cm (4.2 in.)
Height: ......................................................... 13.2 cm (5.2 in.)
ID30C-8/-16: ..................................................... 1.6 kg (3.5 lb)
ID30CT: ............................................................ 2.1 kg (4.5 Ib)
ID30C-8/-16: ..................................................... 1.8 kg (4.0 Ib)
ID30CT: ............................................................ 2.3 kg (5.1 Ib)
Cobreflex IIB, Cobreflex III, PH, 2WP, SMH, SH
Compression Drivers
Medium-Power
COMMERCIAL
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ID30CT Summary of contents
Page 1
... The loudspeaker shall be the ID30CT, which includes a 70-V/ 25-V line-matching transformer (see Table II) and weighs no more than 2.1 kg (4.5 Ib), and the ID30C8, which has a nominal impedance of 8 ohms (or ID30C-16 with 16-ohm impedance) and weighs no more than 1 ...
Page 2
... Alternately, a 1/2-inch conduit fitting can be substituted for the gland nut. However, the sealing washer must be retained. For the ID30CT, connect the loudspeaker wires to the “com” terminal and the appropriate line terminal ( V). For the ID30C-8/-16, connect to the black and white loudspeaker wire using wire nuts. ...