Electro-voice CFID32T DATASHEET

CFID32T

General Product Description

The CFID32T is a 32-watt wide angle paging projector
designed for high speech clarity under difficult noise
conditions.

The drivers employ rugged phenolic diaphragms, 1.5-inch diameter
voice coils and “rim centered” ferrite magnet structures for long life
and reliability.

The transformer model CFID32T includes connections for 25 V and
70 V distributed systems and a screwdriver operated power tap
select switch.

A nominal 55° horizontal by 75° vertical coverage pattern, together
with a low-frequency cutoff of 300 Hz, provides excellent articulation
in demanding applications.

Ideal for both indoor and outdoor applications, this driver
is well suited for any installation requiring rugged, reliable
performance.

Architects’ and Engineers’ Specifications

The loudspeaker shall have a rectangular reflex horn with an
exponential expansion rate. The driver employs a rugged phenolic
diaphragm and high-temperature rated 3.81 cm (1.5 in.) voice coil.

The axial frequency response will extend from 330 to 4,200 Hz and
the horn shall exhibit a low-frequency cutoff of 300 Hz. Sound
pressure level will be 107 dB (1 W/1 M) with a 500 to 5,000 Hz pink
noise signal applied, and the horn will produce a horizontal
beamwidth of 55° and a vertical beamwidth of 74° at 2 kHz.

The loudspeaker shall be capable of handling a 32-watt, 500 to
5,000 Hz pink noise signal with a 6 dB crest factor for a period of
eight hours.

Variable Power Paging/

Talk-Back Speaker

The horn shall be weatherproof Cycolac capable of satisfactory
mechanical performance in extreme weather conditions with a
field-replaceable plug-in diaphragm and voice coil assembly.

A gland nut shall be provided for a weathertight seal and a Uni-Lok
swivel mount for rotation in both the horizontal and vertical planes.
The Uni-Lok shall fit standard 1/2-inch pipe thread.

The loudspeaker shall be the CFID32T, which includes a 70 V/25
V line matching transformer and weighs no more than 2.7 kg (5.9
lb).

COMMERCIAL

Specifications:

Frequency Response:

........................................ 330-4,200 Hz ±5 dB (see Figure 3)

Power Handling, 8 Hours, 6 dB Crest Factor:

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

Impedance:

.................................................................................... 8 ohms

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

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

Horizontal Beamwidth:

55° @ 2 kHz (see Figure 2)

Vertical Beamwidth:

74° @ 2 kHz (see Figure 2)

Directivity Factor Rθ (Q):

16.3 @ 2 kHz

Usable Low-Frequency Limit:

..................................................................................... 300 Hz

Construction:

Non-resonant Cycolac horn material and durable diecast mounting
bracket. Resistant to environmental extremes.

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

Magnet Weight:.................................................... 0.28 kg (0.63 lb)

Magnet Material:

...................................................................... Strontium ferrite

Flux Density:

................................................................................ 1.15 Tesla

Dimensions:

Height: ......................................................... 18.1 cm (7.1 in.)

Width: ......................................................... 36.5 cm (14.4 in.)

Depth: ......................................................... 31.8 cm (12.5 in.)

Net Weight: CIFD32T:............................................ 2.7

Shipping Weight: CFID32T:.................................. 2.9 kg (6.3 lb)

kg (5.9 lb)

Installation

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.

The Uni-Lok swivel mount allows the speaker to be precisely positioned
and locked in place. A mounting plate is furnished with the Uni-Lok but
Y2-inch pipe may be used instead.

To flush mount the horn, finish drilling the four predrilled holes from the rear
four corners and insert #8 machine screw toggle bolts or screws to secure
the unit from the front.

A foam insert (CFID32F) is available to screen against nesting birds and
insects.

Polar Response

The directional characteristics of the CFID32 were measured by running a
set of horizontal/vertical polar responses, in Electro-Voice’s large anechoic
chamber, at each one-third-octave center frequency. The test signal was
one-third-octave pseudo-random pink noise centered at the indicated
frequencies. The measurement microphone was placed 6.1 m (20 ft.) from
the horn mouth, while rotation was about the waveguide geometric apexes.
These axes of rotation are quite close to the apparent (acoustic) apexes
across the frequency range of measurement. Errors attributable to the slight
differences between the geometric and acoustic apexes are reduced to an
inconsequential level by the relatively long, 20-foot measuring distance.
The horn was suspended freely with no baffle. The polar plots shown in
Figure 1 display the results of these tests. The center frequency is noted on

each plot. The wider plot on each chart is the horizontal polar (-) and the
narrower plot is the vertical polar.

Beamwidth

A plot of the CFID32’s 6 dB-down total included beamwidth angle is shown
in Figure 2 for each one-third-octave center frequency.

Frequency Response

Figure 3 shows the axial frequency response of the CFID32. It was measured
at a distance of 1 meter, using a swept sine wave.

Transformer

A transformer and power selector switch are installed in the rear housing.

The level of the CFID32T may be adjusted by moving the switch setting;
clockwise increases the power.

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 1 (below) indicates recommended values. The
values shown are for 200 Hz. Values for other frequencies can be determined
by using the formula:

= Values shown in the following table

C

C

x 200

200

C =

[

Table 1. Series Protection Capacitors for 200 Hz and Below

.seniLtloV-07seniLtloV-52

rewoPecnadepmIecnaticapaCecnadepmIecnaticapaC

W231615

W515332fm2402

W010053.1

W500017.0

W5.200024.0

W52.100042.0

200

]

f f = New Frequency

fm

fm

fm

fm

fm

0204

3631

5217

0524

0052

fm

fm

fm

fm

fm

fm

CFID32 Beamwidth vs. Frequency

Figure 2

Figure 1

CFID32 Polar Response

USA 12000 Portland Ave South, Burnsville, MN 55337, Phone: [phone], FAX: [phone]
Canada 705 Progress Avenue, Unit 46,Scarborough, Ontario, Canada, M1H2X1,Phone: [phone], FAX: [phone]
Switzerland Keltenstrasse 11, CH-2563 IPSACH, Switzerland, Phone: [phone]. FAX: [phone]
Germany Hirschberger Ring 45, D94315, Straubing, Germany, Phone: [phone], FAX: [phone]
France Parc de Courcerin, Alle Lech Walesa, Lognes, 77185 Marne La Vallee, France, Phone: [phone], FAX: [phone]
Australia Unit 23, Block C, Slough Business Park, Slough Avenue, Silverwater, N.S.W. 2128, Australia, Phone: [phone], FAX: [phone]
Hong Kong Unit E & F, 21/F, Luk Hop Industrial Bldg., 8 Luk Hop St., San PO Kong, Kowloon, Hong Kong, Phone: [phone], FAX: [phone]
Japan 2-5-60 Izumi, Suginami-ku,Tokyo, Japan 168, Phone: [phone], FAX:[phone]
Singapore 3015A Ubi Rd 1, 05-10, Kampong Ubi Industrial Estate, Singapore 408705, Phone: [phone], FAX: [phone]
Mexico Av. Parque Chapultepec #66-201, Col. EI. Parque Edo. Mex. 53390, Phone: [phone], FAX: [phone]
UK 4, The Willows Centre, Willow Lane, Mitcham, Surrey CR4 4NX, UK, Phone: [phone], FAX: [phone]
Africa, Mid-East 12000 Portland Ave South, Burnsville, MN 55337, Phone: [phone], FAX: [phone]
Latin America 12000 Portland Ave South, Burnsville, MN 55337, Phone: [phone], FAX: [phone]

www.electrovoice.com • Telex Communications, Inc. • www.telex.com

© Telex Communications, Inc. 02/2001

Part Number 38109-841 Rev A

CFID32 Frequency Response

Figure 3

(1 watt at 1 meter)

For customer orders, contact the Customer Service department at

For warranty repair or service information, contact the Service

For technical assistance, contact Technical Support at 866/78 AUDIO

Please refer to the Engineering Data Sheet for warranty information.

Specifications subject to change without notice.

U.S.A. and Canada only.

800/392-3497 Fax: [phone]

Repair department at 800/685-2606