General Product Description

The Electro-Voice®model HP1240 is a wide-range, flat-front, high-frequency, constant directivity horn. The horizontal angle is controlled over a frequency range of 500 Hz to 20 kHz and the vertical angle is controlled from 1.5 kHz to 20 kHz, both with unusual precision and adherence to the intended angle. Furthermore, excellent loading is maintained to a low frequency of 500 Hz.

The flat-front design makes the HP1240 suitable for all modern boxed and clustered systems. A special vaned waveguide throat detail gives the HP1240 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 beamwidth (6 dB-down angle) of 120 degrees, deviating no more that 40 degrees from this angle over the frequency range 500 to 20,000 Hz. It shall produce a vertical beamwidth of 40 degrees, deviating no more than 20 degrees from this angle over the frequency range 1,500 to 20,000 Hz. In addition, it shall provide useful acoustic loading at all frequencies above 500 Hz.

The horn shall be of hybrid fiberglass-and-zinc construction. The driver-mounting flange and initial

HP1240

Constant-Directivity

Horn

throat section shall be constructed of die-cast zinc and shall be integrally laminated into the fiberglass portion of the horn.

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

33.0cm (13.0 in.) high, 53.3 cm (21.0 in.) wide, and

26.4cm (10.4 in.) long. It shall weigh no more than 3.2 kg (7.0 lb).

The horn shall be the Electro-Voice® model HP1240 constant-directivity 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:

120° (+20°, -40°) (-6 dB 500 Hz to 20 kHz)

Vertical Beamwidth:

40° (+20°, -10°) (-6 dB, 1.5 kHz to 20 kHz)

Directivity Factor Rθ (Q):

8.4 (average 1.25 kHz to 20 kHz)

Directivity Index Di:

9.24 dB (+1.2, -.9 dB)

10 log Rθ, (average 1.25 kHz to 20 kHz)

Lowest Recommended Crossover Frequency:

500 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 1/4" bolts on a 4" diameter bolt circle.

Recommended Driver:

DH1A or DH2A

Weight:

3.2 kg (7.0 lb)

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Electro-Voice HP1240 specifications General Product Description, Architects’ and Engineers’ Specifications

HP1240 specifications

The Electro-Voice HP1240 is a high-performance loudspeaker renowned for its exceptional sound clarity and versatility, making it a popular choice among audio professionals and enthusiasts alike. Designed for both live sound applications and fixed installations, the HP1240 is a prime example of Electro-Voice's commitment to innovative audio technology.

One of the standout features of the HP1240 is its robust and lightweight construction. The enclosure is crafted from durable materials that not only ensure longevity but also contribute to superior sound quality. The cabinet design minimizes distortion and enhances the overall acoustic performance of the speaker, allowing for clear, accurate sound reproduction across a wide frequency range.

Equipped with a dual 12-inch woofer, the HP1240 delivers impressive low-end response, making it ideal for music genres that require deep bass. The woofer is complemented by a powerful 1.4-inch titanium diaphragm compression driver, which provides pristine high-frequency output. Together, these components create a balanced audio experience that is well-suited for both vocal clarity and musical depth.

The HP1240 employs advanced technologies such as the proprietary EV Waveguide, which optimizes the dispersion of sound. This innovation ensures that the audio is evenly distributed across the listening area, minimizing dead spots and providing a consistent experience for audiences, regardless of their position in the room. This feature is particularly beneficial in larger venues where sound coverage can be challenging.

Another notable characteristic of the HP1240 is its versatility in connectivity. It comes equipped with a range of input options, allowing for seamless integration with various audio systems. Whether used in conjunction with a mixer or as part of a larger sound reinforcement setup, the HP1240 adapts effortlessly to meet the needs of audio professionals.

Moreover, the speaker's efficiency is enhanced by its design, enabling it to deliver high output levels with minimal power consumption. This makes the HP1240 not only an environmentally friendly choice but also a cost-effective solution for those looking to maximize performance while keeping energy costs in check.

In conclusion, the Electro-Voice HP1240 stands out in the realm of professional audio equipment. With its robust construction, advanced sound dispersion technologies, and versatile connectivity options, it provides impeccable audio performance for a wide range of applications. Whether for concerts, conferences, or fixed installations, the HP1240 is a reliable choice that consistently meets the demands of audio professionals and music lovers alike.