Electro-voice HP42S DATASHEET

General Product Description

The Electro-Voice® model HP42S is a wide-range,
flat-front, high-frequency, constant-directivity horn.
Furthermore, excellent loading is maintained to a low
frequency of 1000 Hz.

The flat-front design makes the HP42S suitable for all
modern boxed and clustered systems. A special vaned
waveguide throat detail gives the HP42S unusually
good high-frequency control, vertically, when compared
to similar 2-inch-throat horn designs.

Architects’ and Engineers’ Specifications

The horn shall be of the constant-directivity type. It
shall produce a horizontal nominal beamwidth (6
dB-down angle) of 40 degrees. It shall produce a vertical
nominal beamwidth of 20 degrees. In addition, it shall
provide useful acoustic loading at all frequencies above
1000 Hz.

The horn shall be of hybrid fiberglass-and-zinc
construction. The driver-mounting flange and initial
throat section shall be constructed of die-cast zinc and
shall be integrally laminated into the fiberglass portion
of the horn.

HP42S

TransPlanar

Constant-Directivity

The horn shall possess a throat of 4.92-cm (1.94in.)
diameter and its flange shall be provided with four ¼-20
clearance bolt holes on a 10.2 cm (4.0 in.) circle for the
mounting of the compression driver. The horn shall be

27.9 cm (11.0 in.) high, 27.9 cm (11.0 in.) wide, and

43.6 cm (17.8 in.) long. It shall weigh no more than 4.0
kg (8.8 lb).

The horn shall be the Electro-Voice model HP42S
constant-directivity horn.

™

Horn

Specifications:

The following specifications are in accordance with
or exceed the AES Recommended Practice for
Specification of Loudspeaker Components Used
in Professional Audio and Sound Reinforcement
(AES2-1984; ANSI S4.26-1984).

Horizontal Beamwidth: .................................. 40°

Vertical Beamwidth: .......................................... 20°

Directivity Factor Rθ (Q): .................................. 18.1

Directivity Index Di:

12.6 dB
10 log R,

Lowest Recommended Crossover Frequency:

.....................................................................1000 Hz

Construction:

Polyester resin and glass-fiber laminate integrally
molded to a die-cast zinc throat section. This hybrid
construction assures a rigid driver mount, accurate,
loss-free throat-wave transmission and low total
weight compared to horns of similar size.

Mechanical Connection of Driver:

Bolt on; standard 2" diameter throat, 5" diameter
mounting flange and four clearance holes for ¼"
bolts on a 4" diameter bolt circle.

Recommended Driver:

DH1A, DH2A

Weight: ............................................... 4.0 kg (8.8 lb)

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G81.71

H39.61

Figure 1: Dimensions

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]
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 5-3-8 Funabashi, Setagaya-ku, Tokyo, 156-0055 Japan, 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 38109-953 Rev A

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 866/78AUDIO

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