User manual ELECTRO-VOICE 850

[. . . ] The Xn is an active near-field, three-way, semi-full-range LF/MB/HF loudspeaker system with a rotatable 60° x 40° coverage pattern. The high-frequency and mid-bass sections are horn loaded with one driver in each frequency band, and the HF horn/ driver combination is mounted coaxially inside the mid-bass horn. The low-frequency section has one driver in a slot-loaded enclosure. The woofer, horns and drivers were designed as part of the Xn development and represent a step forward in state-ofthe-art loudspeaker design in terms of high acoustic output with low distortion and low power compression. [. . . ] A digital crossover was used to provide the appropriate filtering and equalization. The test parameters are as follows: High-Frequency Section: PE(MAX): 75 watts Test Voltage: 30. 1-volts rms 60. 2-volts peak RSR (1. 15 RE): 12. 1 ohms Mid-Bass-Frequency Section: PE(MAX): 300 watts Test Voltage: 45. 5-volts rms 91. 0-volts peak RSR (1. 15 RE): 6. 90 ohms Low-Frequency Section: PE(MAX): 600 watts Test Voltage: 58. 7-volts rms 117. 4-volts peak RSR (1. 15 RE): 5. 75 ohms 2 Xn Three-Way, LF/MB/HF System Xn Three-Way LF/MB/HF System Amplifier Recommendations Power amplifiers with the following ratings are recommended for use with the Xn loudspeaker systems: HF: 800 watts per channel into 8 ohms 93-volts rms short term 132-volts peak MB: 800 watts per channel into 8 ohms 93-volts rms short term 132-volts peak LF: 800 watts per channel into 8 ohms 93-volts rms short term 132-volts peak Xn loudspeakers may be paralleled with other Xn systems as long as the amplifiers can drive the lower impedances. To maintain a sufficient damping factor with long cable runs, amplifier loads of four ohms per channel are recommended. The Electro-Voice P3000 amplifiers are ideal for powering the X-ArrayTM systems. Crossover, Equalization and Signal Delay Controller The Xn is a three-way active loudspeaker system requiring an active crossover, equalization and signal delay controller. For basic applications, the Electro-Voice Dx38 2-in/4-out controller is recommended. For more sophisticated applications, the Klark Teknik DN8000 2-in/5-out controller is recommended. Linkwitz-Riley crossover filters with a minimum slope of 24-dB per octave at 125 Hz and 1, 760 Hz are recommended, and subsonic filter protection at 50 Hz or higher with a minimum slope of 12-dB/octave is recommended in the lowfrequency section. Both the Dx38 and the DN8000 offer appropriate filtering, equalization and signal delay capabilities to provide optimum performance of the X-ArrayTM loudspeaker systems. Digital parameter settings for both controllers are available upon request. Electrical Connection and System Wiring Two semiparalleled Neutrik 8-pin Speakon® connectors are used for electrical connection to the Xn loudspeakers with the following pin assignments: HF: Pins 4 In / Pins 4 Out MB: Pins 3 / Pins 3 Out LF: Pins 1 In / Pins 2 Out The Xn wiring diagram is shown in Figure 7. The loudspeaker system also shall have a 457-mm (18-in. ) low-frequency woofer slot-loaded 4 Xn Three-Way, LF/MB/HF System in the enclosure and shall have an 8-ohm, 101-mm (4-in. ) diameter voice coil and a 600-watt power rating. The loudspeaker shall have a rigging system enabling a column of loudspeakers to be hinged at their back corners with relative downward angles set by adjustable rigging straps at the front. The enclosure shall be constructed of 18mm thick, 13-ply birch plywood, and shall be trapezoidal forming an 18° wedge, and be 914 mm (36. 00 in. ) high, 584 mm (23. 00 in. ) wide at the front, 365 mm (14. 38 in. ) wide at the back and 759 mm (29. 88 in. ) deep and shall weigh 87 kg (192 lb). The loudspeaker system shall be the ElectroVoice Xn. Rigging Accessories: Grid: This ATM Fly-WareTM "T"-shaped, all-steel-construction grid was specifically designed as a single column of X-ArrayTM systems. Multiple grids can be linked together with couplers on front and back retractable arms, the position of which sets the splay angle between adjacent columns. Wilmington Ave. , Carson, CA 90810 USA, 310/834-5914 Xrhg Grid Hinge: Two Xrhg grid rigging hinges are used to attach the rear of the top enclosure in a column to the rear of an X-ArrayTM compatible grid. Each hinge consists of two precision-machined steel rigging-track fittings connected by an alloysteel chain. ElectroVoice, 600 Cecil St. , Buchanan, MI 49107 USA, 616/695-6831 or 800/234-6831 Xrhp Pickup Hinge: Two Xrhp pickup rigging hinges are used to create custom rigging assemblies to attach to the rear of the top enclosure in a column when an ATM grid is not used. Each hinge consists of one precision-machined steel rigging-track fitting with an alloy-steel chain. Electro-Voice, 600 Cecil St. , Buchanan, MI 49107 USA, 616/ 695-6831 or 800/234-6831 Xrhl Linking Hinge: Two Xrhl linking rigging hinges are used to link two enclosures together at the rear. [. . . ] Incidental and Consequential Damages Excluded: Product repair or replacement and return to the customer are the only remedies provided to the customer. Electro-Voice shall not be liable for any incidental or consequential damages including, without limitation, injury to persons or property or loss of use. Some states do not allow the exclusion or limitation of incidental or consequential damages so the above limitation or exclusion may not apply to you. Other Rights: This warranty gives you specific legal rights, and you may also have other rights which vary from state to state. [. . . ]