User manual ELECTRO-VOICE DL10X DATASHEET
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Manual abstract: user guide ELECTRO-VOICE DL10XDATASHEET
Detailed instructions for use are in the User's Guide.
[. . . ] The directivity index, Di, is calculated by the formula: Di = 10 log10 R. TYPICAL AMPLIFIER SIZE 300-600 watts per woofer is the optimal amplifier size. Amplifiers of this size will allow maximum output with minimal risk of speaker damage when properly used. Smaller amplifiers can also be used with excellent results--the full capabilities of the speaker will simply not be used. [. . . ] Both of these specifications use noise spectrums which mimic typical music and test the thermal and mechanical capabilities of the components. 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. 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. 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. Henricksen, "Engineering Justifications for Selected Portions of the AES Recommended Practice for Specification of Loudspeaker Components, " pp. The comments in this article will be particularly of interest to those not involved in the day-to-day design and testing of loudspeakers. [. . . ] The frame shall be constructed of strong, deformation-resistant die-cast aluminum. The magnet assembly shall incorporate PROTEFTM protection, a TIRTM (Thermo Inductive Ring) and FDDTM (Flux Demodulation Device) to reduce inductive coupling and increase power handling. 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. [. . . ]
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