Telex IBC8 - Manual

IBC8

Paging Speaker

General Product Description

The IBC8 is a 30-watt paging or public address loudspeaker for use
under adverse ambient noise conditions.

The driver employs a rugged phenolic diaphragm, 1.5-inch diameter
voice coil and “rim centered” ferrite magnet structure for long life
and reliability under extreme operating conditions.

A 6-inch vinyl-jacketed cable, phased and color coded, is provided
for connecting to the IBC8.

A 60° dispersion angle and a low-frequency cutoff of 350 kHz
provides excellent articulation in demanding applications.

The IBC8 is contructed from heavy gauge spun aluminum and
baked-on acrylic finish. A painted steel swivel bracket provides
maximum mounting flexibility and ease of installation.

Ideal for both indoor and outdoor applications, this horn and driver
unit is ideal for any requirement where rugged, reliable performance
is necessary.

Architects’ and Engineers’ Specifications

The loudspeaker shall be the Model IBC8 integral hor n and
l o u d s p e a ke r u t i l i z i n g a r u g g e d p h e n o l i c d i a p h r a g m a n d
high-temperature rated 1.5-inch voice coil.

The axial frequency response will extend from 500 to 7,000 Hz.
Sound pressure level will be 107 dB (1 W/1 M) with a 500 to 3,000
Hz pink noise signal applied, and the horn will produce a sound
dispersion of 60° at 2 kHz.

The loudspeaker 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 hor n shall be heavy gauge spun aluminum, capable of
satisfactory mechanical performance in the temperature range from
-40°C (-40°F) to 71°C (160°F) and impervious to adverse conditions.
The mounting base shall be steel, and the horn and base finished
in baked-on gun metal gray acrylic.

Specifications:

Frequency Response: ......... 500-7,000 Hz ±5 dB (see Figure 3)

Power Handling: 8 Hours, 6 dB Crest Factor:

............................................... 30 watts (500-5,000 Hz pink noise)

Impedance: ........................................................ Nominal: 8 ohms

Sound Pressure Level at 1 Meter, 1 Watt Input Averaged, Pink
Noise Band-Limited from 500 to 5,000 Hz:

............................................................................................ 107 dB

Voice Coil Diameter: .......................................... 3.81 cm (1.5 in.)

Magnet Weight: ................................................... 0.24 kg (0.53 lb)

Magnet Material: ................................................ Strontium ferrite

Flux Density: .................................................................. 1.2 Tesla

Construction:

Heavy gauge spun aluminum and baked-on acr ylic finish
combined for weather-proof construction.

Mechanical Construction of Driver:

1-3/8"-18 x ½”- long thread allows the 7110XC to be mounted
on any horn

Dimensions,

Diameter: ................................................... 26.0 cm (10.3 in.)
Length: ......................................................... 22.9 cm (9.0 in.)

Net Weight: ............................................................. 1.4 kg (3.2 lb)

Shipping Weight: .................................................... 2.0 kg (4.3 lb)

The mounting base shall provide orientation adjustment in all three
planes. Vertical adjustments are made by loosening a single wingnut
on the mounting base.

The loudspeaker shall be 26.0 cm (10.3 in.) in diameter, and 22.9
cm (9.0 in.) deep.

The loudspeaker shall be the IBC8, which has a nominal impedance
of eight ohms and weighs no more than 1.4 kg (3.2 lb).

C O M M E R CIA L