Electro-voice PA-12 F DATASHEET

General Product Description

The PA12F is a 12 watt reentrant paging projector
designed for flush-mounting.

The driver uses a rugged phenolic diaphragm, a 1.0
inch voice coil and component parts proven reliable
under stressful conditions.

A 15 inch SJTO-18-2 connecting cable, phased and
color coded, is provided.

A dispersion angle of 125° ±25° is maintained over the
frequency range of 600 Hz to 3,000 Hz. Excellent
loading is maintained to a low-frequency cutoff of 500
Hz.

The PA12F is constructed of diecast zinc and ABS
molded inner horn components that are virtually
impervious to bad-weather conditions.

Designed for low-impedance systems, this compact
horn has outstanding speech intelligibility and high
efficiency.

Architects’ and Engineers’ Specifications

The loudspeaker shall be an integral driver and
reentrant horn having a rugged phenolic diaphragm and
a high-temperature-rated 1.0 inch voice coil.

The axial frequency response will extend from 700 to
10,500 Hz and the horn shall exhibit a low frequency
cutoff of 500 Hz. Sound pressure level will be 103 dB
(1 W/1 M) with a 1,000 to 5,000 Hz pink noise signal
applied, and the horn will produce a dispersion angle
of 125° at 2 kHz.

PA12F

Reentrant Paging Projector

COMMERCIAL

The loudspeaker shall be capable of handling a 12 watt,
1,000 to 5,000 Hz pink noise signal with a 6 dB crest
factor for a period of eight hours.

The horn shall be diecast zinc with inner horn
components of high-impact ABS, fungus-proof,
moisture-proof, and capable of satisfactory mechanical
performance in extreme or inclement weather.

Finish is mesa tan baked enamel. The Model PA12F is
specified.

Specifications:

Frequency Response: ...... 700-10,500 Hz ±5 dB (see Figure 3)

Power Handling: 8 Hours, 6 dB Crest Factor:

............................................... 12 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 1,000 to 5,000 Hz:

............................................................................................ 103 dB

Horizontal Beamwidth: .................. 125° @ 2 kHz (see Figure 2)

Vertical Beamwidth: ...................... 125° @ 2 kHz (see Figure 2)

Directivity Factor R

Usable Low-Frequency Limit: ......................................... 500 Hz

(Q): ......................................... 8.5 @ 2 kHz

θ θ

θ

θ θ

Construction:

Diecast zinc outer housing in mesa tan finish and high-impact ABS
inner horn components

Voice-Coil Diameter: .......................................... 2.54 cm (1.0 in.)

Magnet Weight: ...................................................... 0.2 kg (0.4 lb)

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

Flux Density: .................................................................. 1.0 Tesla

Dimensions:

Diameter: ............................................. 15.2 cm (6.0 in.)

Depth: .................................................... 9.2 cm (3.6 in.)

Net Weight: ............................................................. 1.4 kg (3.0 lb)

Shipping Weight:.................................................... 1.5 kg (3.3 lb)

Installation

The PA12F can be mounted behind a 12.4 cm (4.87 in.)
diameter hole or through a hole 12.7 cm (5.0 in.) in diameter.

When mounting from behind, allow a sufficient depth of 9.21
cm (3.62 in.) to accommodate the horn. When mounting
through the hole, allow only for the depth behind the flange:

8.89 cm (3.50 in.)
For either installation, the gasket must be attached between

the horn’s flange and the mounting surface for a weathertight
seal.

Polar Response

The directional characteristics of the PA12F were measured
by running a set of horizontal/vertical polar responses, in
Electro-Voice’s large anechoic chamber, at each one-third­octave 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, 20­foot 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 PA12F’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 PA12F. It
was measured at a distance of 1 meter, using a swept sine
wave.

Figure 1

PA12F 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 38109-843 Rev A

Figure 2

PA12F Beamwidth vs. Frequency

Figure 3

PA12F Frequency Response (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 Engineer ing 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