User manual ELECTRO-VOICE DL10X EDS

[. . . ] The test signal was one-third-octave filtered pink noise centered at the frequencies indicated. A full spherical measurement system, which is completely compatible with the AcoustaCADDTM computer-aided design program, was used. 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. [. . . ] Factors such as flair rate, mouth size, and rear chamber volume play critical roles in the performance of any hornloaded system. Normally Tuned Enclosures The DL10X in a 1. 0-cubic-foot enclosure tuned to 75 Hz has essentially flat response to 90 Hz (See Figure 9). Figure 11 shows the maximum predicted output level, taking power handling and displacement limitations into account. SUBPASSBAND SPEAKER PROTECTION Below the enclosure tuning frequency, cone excursion increases rapidly. Since acoustic output is also falling rapidly, there is no utility in driving the system with signals much below tuning frequency. While such signals may be in the program material, they are often extraneous, such as a dropped microphone. The Electro-Voice EX-24, XEQ-2 and XEQ-3 electronic crossover/equalizers can provide subpassband protection. The 3-dB-down points are 30 Hz (EX-24 and XEQ-2) and 16 Hz or 32 Hz (XEQ-3). Other high-pass filters are available, and onethird-octave equalizers can also be effective at providing the required protection. MOUNTING The DL10X may be front- or rear-mounted FIGURE 11 -- Maximum SPL at 1 Meter in a Typical Enclosure (1. 0 ft3 tuned to 75 Hz) Dimensions (see Figure 10), Outer Diameter: 266 mm (10. 48 in. ) Overall Depth: 120 mm (4. 7 in. ) Net Weight: 8. 6 kg (19. 0 lb) Shipping Weight: 9. 5 kg (21. 0 lb) DESCRIPTION The DL10X low/mid-frequency reproducer is a 10-inch, 8-ohm driver designed for professional high-level, high-fidelity monitoring and sound reinforcement. Its design assures linear, low-distortion output, high power capability and efficient heat transfer. Incorporated into the design are three exclusive Electro-Voice innovations. patent #4, 547, 632), a Teflon® -based coating, is applied to the inside diameter of the top plate. 4 Occasional violent power peaks of several seconds may expand a transducer's voice coil into contact with the top plate, causing failure. The coating lubricates any rubbing contact and provides electrical insulation between the coil and the steel top plate. The Thermo Inductive Ring (TIRTM) and Flux Demodulation Device (FDDTM), also included in the DL10X design, are aluminum castings fastened to the pole of the magnet. They provide a shorted turn to control inductance and provide a major heat transfer path from the voice coil, which improves power handling and reduces thermal dynamic-range compression. [. . . ] Other Rights: This warranty gives you specific legal rights, and you may also have other rights which vary from state to state. Electro-Voice Speakers and Speaker Systems are guaranteed against malfunction due to defects in materials or workmanship for a period of five (5) years from the date of original purchase. The Limited Warranty does not apply to burned voice coils or malfunctions such as cone and/or coil damage resulting from improperly designed enclosures. [. . . ]