Руководство по эксплуатации Martin Audio W8VDQ

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PRELIMINARY  INFORMATION
User’s Guide
W8VDQ
The Martin Experience
All material © 2008. Martin Audio Ltd. Subject to change without notice.

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W8VDQ Preliminary User Guide Contents 1 Unpacking 2 Introduction 3 Safety first 3.1 Pole mounting 3.2 Free standing 3.3 Yoke assembly 4 Aiming for best coverage 5 Amplification & control 6 Connections 7 Cable lengths 8 Warranty All material © 2008. Martin Audio Ltd. Subject to change without notice.

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1 Unpacking Thank you for purchasing a Martin Audio W8VDQ system. Each Martin Audio W8VDQ loudspeaker is built to the highest standard and thoroughly inspected before it leaves the factory. After unpacking the system, examine it carefully for any signs of transit damage and inform your dealer if any such damage is found. We suggest that you retain the original packaging so that the system can be repacked at a future date if necessary. Please note that Martin Audio and its distributo

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3.2 Free standing Ensure that the floor, stage, platform or subwoofer is level and solid Ensure that the front of the W8VDQ does not overlap the front edge of the stage, platform or subwoofer. System stability relies on the whole front width of the W8VDQ – not just it’s central foot Outdoor systems – or systems accessible by the audience – must be strapped down for safety Be aware that speakers producing very high power levels can vibrate, move or creep. Again, strapping will keep

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a) Fit the clamping plate assemblies to the left and right yoke arms as illustrated. Clamping plates fitted to left & right yoke arms. Please note orientation. b) Fit the yoke arms to the yoke before bolting them to the W8VDQ. Ready to fit dome nut & thumbwheel All material © 2008. Martin Audio Ltd. Subject to change without notice.

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Dome nut & thumbwheel fitted c) Remove the yoke mounting bolts (see earlier) from the W8VDQ cabinet and fit the yoke assembly. Note that the yoke arm follows the W8VDQ front curvature All material © 2008. Martin Audio Ltd. Subject to change without notice.

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The yoke may be turned upside down for an alternative tilt angle range… Alternative orientation 4 Aiming for best coverage The W8VDQ is designed for medium coverage – up to 25m distance x 100deg (120deg in the nearfield). Height The W8VDQ should always be mounted so that the bottom/foot is about 1m above near-field listener head- height (or 1m above front balcony listener level when used for a balcony fill) for the differential coverage to work correctly. Nearfield attenuati

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Aiming The W8VDQ can cover approximately 30deg vertically. The easiest way to set the tilt angle for maximum rear audience level is to aim the top section of the grille straight towards the furthest seat. See Maximum level to farfield line below… Note that the W8VDQ’s differential dispersion does not allow vertical arraying or stacking. The Martin Audio W8LM line array system provides optimal vertical coupling for vertical array applications. Horizontal arraying (up to 60-100deg be

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This policy avoids clipping transient peaks. Clipping not only sounds unacceptable but can seriously stress your system by dumping large amounts of distortion into the high frequency drivers - especially in passive mode. Controllers The W8VDQ must be used with a Martin Audio DX1.5, DX2 or Engineer controller system to ensure correct operation and protection. DX1.5 (New for November 2008) 2 input, 6 output digital loudspeaker management system The DX1.5 is a powerful 2in-6out DSP

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Contact your Martin Audio distributor or visit www.martin-audio.com for the latest W8VDQ presets – available in spreadsheet, binary and XTA AudioCore formats. All material © 2008. Martin Audio Ltd. Subject to change without notice.

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6 Connections Active/Passive operation W8VDQs may be operated in Active (3way bi-amplified) or Passive (3way passive) mode. Rear panel showing Active/Passive switch, pinout & nearfield attenuator switch The W8VDQ connector panel has two Neutrik Speakon connectors wired in parallel. The second connector allows use of a short link lead to power another W8VDQ loudspeaker for wider horizontal coverage. The connectors are wired as follows: W8VDQ passive wiring (ensure rear swit

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7 Cable lengths When connecting W8VDQ systems to an amplifier, it is recommended that the return resistance of the cable used is less than one tenth of the nominal impedance of the system or systems in parallel. The table below gives an indication of the maximum permissible cable runs for various conductor cross-sectional areas. 8 Warranty Martin Audio ceiling loudspeaker products are warranted against manufacturing defects in materials or craftsmanship over a period of 5