Electro-Voice HPT94 Bedienungsanleitung

HPT94

Constant-Directivity

Supertweeter Horn

General Product Description

The Electro-Voice®model HPT94 is a wide-range, flat-

front, constant-directivity super-tweeter horn. Both

horizontal and vertical angles are controlled from 3 kHz

to 20 kHz with unusual precision and adherence to the

intended angle. Furthermore, excellent loading is

maintained to 1,600 Hz. The flat-front design makes

the HPT94 suitable for all modern boxed and clustered

systems.

Architects’ and Engineers’ Specifications

The horn shall be of the constant-directivity type.It shall

produce a horizontal beamwidth (6-dB-down angle) of

90 degrees, deviating no more than 15 degrees from

this angle over the frequency range 3 kHz to 20 kHz. It

shall produce a vertical beamwidth of 40 degrees,

deviating no more than 20 degrees from this angle over

the frequency range 4 kHz to 20 kHz. In addition, it

shall provide useful acoustic loading at all frequencies

above 1.6 kHz.

The horn shall be of hybrid fiberglass-and-zinc

construction. The initial throat section shall be

constructed of die-cast zinc and shall be integrally

laminated into the fiberglass portion of the 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:

90° (+15°, -15°) - (-6 dB 3 kHz to 20 kHz)

Vertical Beamwidth:

40° (+20°, -10°) - (-6 dB, 4 kHz to 20 kHz)

Directivity Factor Rθ(Q):

11.6 (average 3 kHz to 20 kHz)

Directivity Index Di:

10.6 dB (+1.2, -1.6 dB)

10 log Rθθ

θθ

θ, (average 3 kHz to 20 kHz)

Lowest Recommended Crossover Frequency:

1.6 kHz

The horn shall possess a throat of 2.36 cm (0.93 in.)

diameter and shall be provided with a 1-3/8"-18

threaded hole for mounting of a compression driver.

The horn shall be 13.3 cm (5.3 in.) high, 13.3 cm (5.3

in.) wide, and 10.1 cm (4.0 in.) long. It shall weigh no

more than 1.8 kg (4.0 lb).

The horn shall be the Electro-Voice model HPT94

constant-directivity horn.

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:

1-3/8"-18 threaded hole

Recommended Driver:

DH2010A, DH2T

Weight:

1.8 kg (4.0 lb)

U.S.A. and Canada only.

For customer orders, contact the Customer Service department at

800/392 3497 Fax: 800/955 6831

For warranty repair or service information, contact the Service

Repair department at 800/685 2606

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.

:snoisnemiDsehcnI

A81-8/31

B63.3

C52.5

D52.5

E8x091.0

F42.3

Directivity

The axial directivity factor Rθ(formerly Q) of the HPT94 horn

was computed at each one-third-octave center frequency from

the horizontal/vertical polars. The graph in Figure 2 illustrates

this data over the range 3 kHz to 20 kHz. The axial frequency

response of the HPT94 horn with a particular driver is in close

correspondence to that driver’s power response above 3 kHz.

Beamwidth

A plot of the HPT94’s 6-dB-down total included beamwidth

angle is shown in Figure 3 for each one-third-octave center

frequency. The horizontal beamwidth is maintained at 90°

(+20°, -15°) over the range of 3 kHz to 20 kHz. Vertical

beamwidth control occurs only above 4 kHz.

Figure 3: 6-dB-Down Beamwidth versus FrequencyFigure 2: Directivity vesus Frequency

Figure 1: Dimensions

Part Number 38109-970 Rev A

USA 1 000 Portland Ave South, Burnsville, MN 55337, Phone: 95 -884-4051, FAX: 95 -884-0043

Canada 705 Progress Avenue, Unit 46,Scarborough, Ontario, Canada, M1H X1,Phone: 416-431-4975, 800-881-1685, FAX: 416-431-4588

Germany Hirschberger Ring 45, D94315, Straubing, Germany, Phone: 49 94 1-706 0, FAX: 49 94 1-706 87

France Parc de Courcerin, Alle Lech Walesa, Lognes, 77185 Marne La Vallee, France, Phone: 33/1-6480-0090, FAX: 33/1-6480-4538

Australia Unit 3, Block C, Slough Business Park, Slough Avenue, Silverwater, N.S.W. 1 8, Australia, Phone: 61/ -9648-3455, FAX: 61/ -9648-5585

Hong Kong Unit E & F, 1/F, Luk Hop Industrial Bldg., 8 Luk Hop St., San PO Kong, Kowloon, Hong Kong, Phone: 85 - 351-36 8, FAX: 85 - 351-33 9

Japan 5-3-8 Funabashi, Setagaya-ku, Tokyo, 156-0055 Japan, Phone: +81 (0) 3-5316-50 0, FAX: +81 (0) 3-5316-5031

Singapore 3015A Ubi Rd 1, 05-10, Kampong Ubi Industrial Estate, Singapore 408705, Phone: 65-746-8760, FAX: 65-746-1 06

Mexico Av. Parque Chapultepec #66- 01, Col. EI. Parque Edo. Mex. 53390, Phone: (5 ) 5358-5434, FAX: (5 ) 5358-5588

UK 4, The Willows Centre, Willow Lane, Mitcham, Surrey CR4 4NX, UK, Phone: 44 181 640 9600, FAX: 44 181 646 7084

Africa, Mid East 1 000 Portland Ave South, Burnsville, MN 55337, Phone: 95 -887-74 4, FAX: 95 -887-9 1

Latin America 1 000 Portland Ave South, Burnsville, MN 55337, Phone: 95 -887-7491, FAX: 95 -887-9 1

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

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