User manual ELECTRO-VOICE 850
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Manual abstract: user guide ELECTRO-VOICE 850
Detailed instructions for use are in the User's Guide.
[. . . ] 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 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. Electro-Voice engineers developed a new technology dubbed Ring-Mode Decoupling (RMDTM)
to substantially improve clarity and intelligibility by reducing both linear and nonlinear resonance modes that color the sound. [. . . ] (See the Crossover, Equalization and Signal Delay Controller section. ) The Electro-Voice P3000 amplifier is recommended for powering the Xn. (See the Amplifier Recommendations section. ) Power-Handling Capabilities The Xn systems are rated as per the "ANSI/EIA RS-426-A Loudspeaker Power Rating, Full Range Test, " which uses a shaped-random-noise signal to simulate typical music to test the mechanical and thermal capabilities of the loudspeakers. 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
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. The loudspeaker system also shall have a 457-mm (18-in. ) low-frequency woofer slot-loaded
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). 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. Each hinge consists of two precision-machined steel rigging-track fittings connected by a heavyduty steel hinge. [. . . ] Exclusions and Limitations: The Limited Warranty does not apply to: (a) exterior finish or appearance; (b) certain specific items described in the individual product-line statement(s) below, or in the individual product data sheet or owner's manual; (c) malfunction resulting from use or operation of the product other than as specified in the product data sheet or owner's manual; (d) malfunction resulting from misuse or abuse of the product; or (e) malfunction occurring at any time after repairs have been made to the product by anyone other than Electro-Voice Service or any of its authorized service representatives. Obtaining Warranty Service: To obtain warranty service, a customer must deliver the product, prepaid, to ElectroVoice Service or any of its authorized service representatives together with proof of purchase of the product in the form of a bill of sale or receipted invoice. A list of authorized service representatives is available from Electro-Voice Service at 600 Cecil Street, Buchanan, MI 49107 (800-234-6831 or FAX 616-695-4743). Incidental and Consequential Damages Excluded: Product repair or replacement and return to the customer are the only remedies provided to the customer. [. . . ]
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