User manual ELECTRO-VOICE DL10X DATASHEET

[. . . ] Figure 6 shows the horizontal and vertical beamwidths. Beamwidth is the angle at which the horizontal and vertical polar responses have decreased in level by 6 dB when compared to the axial frequency response. Figure 7 illustrates the total directivity of the DL10X. The directivity factor R (Q) is the relative value, at a point, of the DL10X when compared to an ideal spherical response. [. . . ] Electro-Voice will support relevant additional standards as and when they become available. Extreme, in-house power tests, which push the performance boundaries of the components, are also performed and passed to ensure years of trouble-free service. Specifically, the DL10X passes ANSI/EIA RS-426-A 1980 with the following values: RSR = 6. 9 ohms (1. 15 x RE) PE(max) = 300 watts Test voltage = 45. 5 volts rms, 91. 0 volts peak (+6 dB) The DL10X passes AES2-1984/ANSI S4. 261984 with the following values: ZMIN = 6. 0 ohms at 350 Hz PE(max) = 300 watts Test voltage = 42. 5 volts rms, 95. 0 volts peak (+6 dB) Selected decade = 50-500 Hz RESPONSE IN STANDARD BAFFLE AES requires a large, planar baffle for this test, WHICH IS INTENDED TO SHOW SMOOTHNESS AND OFF-AXIS RESPONSE, NOT BASS RESPONSE. This has proven to be inconvenient and prohibitive, due to its size. Here, we have chosen our lab-standard, lowdiffraction, 12-cubic-foot test enclosure, which will demonstrate the same characteristics as the AES standard baffle (see Figure 2). A smoothed, swept-sine-wave input is used for this measurement to provide a more informative curve to the end user. TYPICAL ENCLOSURES The most extended bass, lowest distortion and best control is usually realized in properly designed vented enclosures. In such designs, the vent, or port, actually provides the lowest octave of output. The vent is driven to full acoustic output by a relatively small motion of the speaker cone itself, acting through the air contained within the enclosure. The excursion of the DL10X at these frequencies is much reduced compared to sealed or open-back enclosures, directly reducing harmonic distortion and the possibility of speaker bottoming. Used as a midbass speaker, horn loading may be desirable for the DL10X. Teflon® is a registered trademark of DuPont. against either surface of its mounting flange and requires a 229 mm (9. 0 in. ) diameter cutout and a 244 mm (9. 62 in. ) bolt circle. Normal fasteners up to 6 mm (1/4 in. ) will fit through the eight holes in the frame. Front mounting is simplest using the optional SMH-1 speaker mounting kit. ELECTRICAL CONNECTIONS The DL10X is fitted with a pair of plated, framemounted connectors with color-coded ends. Electrical connection is made by pushing down, inserting wire completely through the rectangular slot and releasing pressure. One conductor of #9 stranded, #8 AWG solid, a pair of twisted #15 AWG stranded or a pair of #14 AWG solid conductors will fit. AES RECOMMENDED PRACTICE The DL10X's specifications conform to the "AES Recommended Practice for Specification of Components Used in Professional Audio and Sound Reinforcement" (AES2-1984/ANSI S4. 26-1984). This recommended practice was developed over a number of years by consultants, manufacturers and government agencies from around the world, so that the detailed performance information required in professional applications could be provided in a unified format. The recommended practice has been published in the October, 1984, issue of the Journal of the Audio Engineering Society (vol. Individual copies of the recommended practice are available from the Audio Engineering Society, 60 East 42nd Street, New York, New York 10165, USA. Also appearing in this issue is an article which comments on the recommended practice from an engineering point of view (C. A. [. . . ] The cone and dust dome should withstand use in damp and humid conditions. The voice coil shall have a diameter of 63. 5 mm (2. 5 in. ), a winding depth of 15. 2 mm (0. 6 in. ) and be made of edge-wound aluminum ribbon. The voice-coil former shall be made of aerospace-grade polyimide laminate and bonded with high-temperature epoxy adhesives. The performance specification of a representative production unit shall be as follows: measured sensitivity (SPL at 1 m (3. 3 ft) with 1 watt input, 100- to 800-Hz pink noise) shall be in excess of 98 dB. [. . . ]