User manual ELECTRO-VOICE A-N684 DATASHEET
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Manual abstract: user guide ELECTRO-VOICE A-N684DATASHEET
Detailed instructions for use are in the User's Guide.
[. . . ] The Xcb is a manifolded, vented-box bass system utilizing one 457-mm (18-in. ) woofer in the half-size X-ArrayTM enclosure shell. The one woofer faces into a slotted chamber at the bottom of the enclosure. This technique increases the acoustic loading, resulting in increased low-frequency efficiency (at slightly above box tuning) and reduced distortion compared to conventional direct-radiating designs. The woofers were designed as part of the Xcb development and represent a step forward in state-of-the-art loudspeaker design in terms of high acoustic output with low distortion and low power compression. [. . . ] The ElectroVoice P3000 amplifiers are ideal for powering the X-ArrayTM systems. Crossover, Equalization and Signal Delay Controller The Xcb is intended to be used with other X-ArrayTM loudspeaker systems (like the Xf, Xn, Xb or Xds for example) to construct fullrange arrays as an active 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. LinkwitzRiley crossover filters with a minimum slope of 24 dB per octave at 125 Hz are recommended, and infrasonic filter protection at 42 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 semi-paralleled Neutrik 8-pin Speakon® connectors are used for electrical connection to the Xcb loudspeakers with the following pin assignments: LF1: Pins 1 in/ Pins 2 out The Xcb wiring diagram is shown in Figure 7. Note that one connector is specifically labeled for input connection only and
Xcb Bass System
Xcb Bass System
the other for output connection only. Also note that Pins 1 In are connected to Pins 2 Out, and Pins 2 In are connected to Pins 1 Out. When four Xcb systems are jumped from one to another via the input/output connections, the amplifier home-run cable will have two woofers on Pins 1 (for a 4-ohm load) and two woofers on Pins 2 (for a 4-ohm load). An XArrayTM Flying Manual is available from Electro-Voice and is included with each X-ArrayTM system shipment. The manual should be consulted for complete structural specifications and detailed instructions for safely suspending and using the X-ArrayTM systems. Field Replacement Normal service for the Xcb requires only a #2 Phillips screwdriver and a 3/16-inch hexkey wrench. The drivers may be accessed as follows: LF: First remove the grille, then remove the screws securing the hatch on the front of the enclosure. Remove the screws se-
curing the 18-inch woofer and lift the woofer out of the enclosure. In the event of failure, the entire woofer must be replaced or reconed. 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. Electro-Voice, 600 Cecil St. , Buchanan, MI 49107 USA, 616/695-6831 or 800/234-6831 Xrsl Long Rigging Steel Straps: Two Xrsl long rigging straps are used at the front of two enclosures to adjust their relative vertical angles. The Xrsl may also be used to attach the front of the top enclosure to the ATM grid when upward angles are not required. Each all-steel strap consists of two New Haven NH32102-2 double-stud fittings connected by black plastic-coated wire rope. [. . . ] If such malfunction occurs during the specified period, the product will be repaired or replaced (at our option) without charge. 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
Xcb Bass System
Xcb Bass System Xcb Bass System
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 Electro-Voice 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). [. . . ]
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