User manual ELECTRO-VOICE DML-1122A

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Manual abstract: user guide ELECTRO-VOICE DML-1122A

Detailed instructions for use are in the User's Guide.

[. . . ] Both rings act to reduce flux modulation and provide a heat transfer path from the outer diameter of the voice coil. The voice coil shall be 100 mm (4 in. ) in diameter and 20 mm (0. 8 in. ) in winding length, and shall be made of edge-wound aluminum ribbon. When centered in the magnetic gap, the voice coil shall produce a force of not less than 21. 9 newtons (tesla-ampere-meters) with a dc current of 1 ampere. Performance specifications of a typical 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 at least 96 dB. [. . . ] The rated power for the loudspeaker shall be 1, 000 watts continuous power. The low-frequency transducer shall be the Electro- Voice® DML-1122A. Recommended 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 DML-1122A at these frequencies is much reduced compared to sealed or open-back enclosures, directly reducing harmonic distortion and the possibility of speaker "bottoming. " The maximum output is limited by either: (1) the long-term thermal power-handling capacity or (2) the speaker's maximum cone-excursion capability, whichever occurs first. -excursion capability, whichever occurs first. Directional Characteristics The directional characteristics of the DML-1122A in the TL3512 256-liter (9-ft³) vented enclosure were measured by running a set of polar responses in EV's large anechoic chamber. The test signal was octave-band-limited pseudo-random pink noise centered at the ISO standard frequencies. Figure 1. Frequency Specifications: Power Handling: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1000 watts continuous Per AES2-1984/ANSI S4. 26-1984, 50-500 Hz: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 600 watts Sensitivity (SPL at 1 W/1 m), 100-800-Hz average: . . . . . . . . . . . . . . . . . . . . . . 98 dB Impedance Response: Minimum (Zmin): . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 ohms Nominal: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0. 122 m2 (189 in. 2) MMD: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0. 127 kg (0. 280 lb) LE : . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1. 6 mH CMS: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0. 200 mm/N RMS: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6. 86 mechanical ohms PE(max): . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 600 watts XMAX1: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6. 4 mm (0. 25 in. ) Xlim2: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Polarity: A positive voltage applies to the positive (red) terminal produces a positive pressure at the front of the cone. Additional Descriptive Information, Magnet Weight: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3. 2 kg (7. 0 lb) Magnet Material: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Barium ferrite Frame: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] Barium ferrite Frame: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cast aluminum Frame Finish: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Textured black epoxy Plating of Steel Parts: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-coat Voice-Coil Material: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ]

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