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Manual abstract: user guide ELECTRO-VOICE HP66 EDS
Detailed instructions for use are in the User's Guide.
[. . . ] HP66
General Product Description
The Electro-Voice® HP66 is a wide-range, flat-front, constant-directivity, high-frequency horn. [. . . ] The horn shall possess a throat of 4. 93-cm (1. 94-in. ) diameter, and its flange shall be provided with four clearance holes for ¼-20 bolts, located 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, 22. 4 cm (8. 8 in. ) wide and 16. 5 cm (6. 5 in. ) long. It shall weigh no more than 2. 2 kg (4. 8 lb). The horn shall be the Electro-Voice HP66 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: 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:
60° (+20°, -10°) (-6 dB 1. 6 kHz to 20 kHz)
Vertical Beamwidth:
40° (+20°, -10°) (-6 dB, 1. 25 kHz to 20 kHz)
Directivity Factor R (Q):
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:
17. 8 (average 1. 6 kHz to 20 kHz)
Directivity Index Di:
DH1A, DH2A, DH2As2
Weight:
12. 5 dB (+2. 0, -3. 0 dB) 10 log R, (average 1. 6 kHz to 20 kHz)
Lowest Recommended Crossover Frequency:
2. 2 kg (4. 8 lb)
1000 Hz
Dimensions: A B C D E F G H
Inches 1. 938 5. 00 8. 75 11. 00 4. 00 0. 281 x 4 6. 52 6. 33
Figure 1: Dimensions
Directivity
The directional characteristics of the HP66 were measured in Electro-Voice's large anechoic chamber using a stock Electro-Voice® DH1A. The test signal was one-third-octave filtered pink-noise at the frequencies indicated. A full spherical measurement system was used. All directional information was measured at 6. 1 meters (20 feet) from the horn.
Figure 2: Directivity vesus Frequency This illustrates the total directivity of the HP66. [. . . ] Specifications subject to change without notice. [. . . ]
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