User manual ELECTRO-VOICE A-N682 DATASHEET

[. . . ] Ring Mode Decoupling, (RMDTM), is a technique utilized and named by Electro-Voice to describe a process used to improve sound quality in loudspeaker systems. RMDTM offers a solution to a very fundamental problem. It has long been recognized that two different loudspeaker systems can sound different even though they both may be equal- ized to have the same frequency response. This difference is due to a variety of resonances, or ring modes that color the sound. [. . . ] A variety of accessories are available for the X-ArrayTM loudspeaker systems, including rigging hardware, dollies, covers, electronic crossovers, amplifier racks and speaker cabling. Consult the X-ArrayTM Accessories section for a complete listing of the available accessories Applications The X-ArrayTM loudspeaker systems were designed for optimal performance in both concert-sound and permanent-installation applications where studio-monitor sound quality is required at concert-sound levels. The XArrayTM loudspeaker systems work well individually, in small arrays and in large arrays. The high acoustic output from these 2 Xds Double Subwoofer System compact, lightweight systems provide the highest acoustic-power-to-weight ratio, the highest acoustic-power-to-frontal-area ratio, and the highest acoustic-power-to-bulk-volume ratio in the industry. That means that X-ArrayTM systems will be considerably smaller and lighter compared to competitive systems having equivalent acoustic output. With its response from 32-200 Hz, the Xds is recommended for subwoofer and low-frequency applications where extremely high levels of bass are required. Specifically, the Xds has been optimized to provide subwoofer reinforcement for all of the X-ArrayTM loudspeaker systems. Typically, the Xds would be crossed over to provide subwoofer reinforcement from 80 Hz and below in parallel with the full-range systems (made up of Xf, Xn, Xcn, Xb and Xcb systems that cover 40 Hz and above). However, the Xds may be crossed over at 125 Hz and used as a combination subwoofer/low-frequency system in place of or in addition to the standard low-frequency systems (like the Xb and Xcb). The Xds may be used individually or in multiples to construct subwoofer/low-frequency arrays, or may be used with the fullrange X-ArrayTM systems to construct fullrange, large-scale arrays. The double-wide Xds enclosure footprint matches that of two standard X-ArrayTM enclosures sitting side by side with their sides parallel, allowing two standard, full-size systems to be stacked on top of the Xds. Klark Teknik, Klark Industrial Park, Walter Nash Road, Kidderminster, Worcestershire DY11 7HJ England, 44-156274-1515 Electro-Voice Dx38 Digital Controller: The Dx38 digital electronic loudspeaker controller has a two-in/four-out architecture, with each output having programmable highpass and low-pass filters, four-band equalization, signal delay compressor and limiter functions. Program parameters for optimal performance of the X-ArrayTM systems are available. Electro-Voice, 600 Cecil St. , Buchanan, MI 49107 USA, 616/695-6831 Electro-Voice P3000 Power Amplifiers: The stereo P3000 power amplifiers are rated at 800 watts into 8 ohms, or 93-volts rms short term. The amplifiers are 3-U high and weigh 28 kg (62 lb) each. EVI Audio, 600 Cecil St. , Buchanan, MI 49107 USA, 616/695-6831 X-ArrayTM Amplifier Racks: These 16-U racks will hold four Electro-Voice P3000 power amplifiers, one Klark Teknik DN8000 digital controller, 1-U light module, and a 2U multipin patch panel. The aluminumframe/wood-panel racks are vibration-isolation mounted on heavy-duty wheel boards and come prewired for AC power, audio and control signal sends and Neutrik® Speakon speaker connectors. db Sound, L. P. , 1219 Rand Road, Des Plaines, IL 60016 USA, 847/299-0357 X-ArrayTM Speaker Cables: Eight conductor cable with four #11 AWG conductors and four #13 AWG connectors. The larger conductors are used in the LF bands for increased damping factor. Standard terminations are Neutrik Speakon TM NL8FC connectors wired to X-ArrayTM standards; however, custom terminations are available. Entertainment Technology Cable, 1247 Rand Road, Des Plaines, IL 60016 USA, 800/529-6312 Miscellaneous Accessories: X-ArrayTM Loudspeaker Covers: Heavyduty covers are available for the X-ArrayTM speakers. These covers wrap around the enclosures, while sitting on a dolly, and Velcro together at the back for fast installation and removal. [. . . ] Additional details are included in the Uniform Limited Warranty statement. For warranty repair or service information, contact the service repair department at: 616/695-6831 or 800/685-2606. For technical assistance, contact Technical Support at 800/234-6831 or 616/695-6831, M-F, 8:00 a. m. Specifications subject to change without notice. Xds Double Subwoofer System 4 Xds Double Subwoofer System Xds Double Subwoofer System Figure 1 -- Polar Response The directional response of the Xds was measured in an anechoic environment at a distance of 6. 1 m (20 ft. ) using 1/3-octave-filtered pink noise with a full spherical measurement system. [. . . ]