EasyManua.ls Logo

L-Acoustics V-DOSC User Manual

L-Acoustics V-DOSC
158 pages
To Next Page IconTo Next Page
To Next Page IconTo Next Page
Page #1 background imageLoading...
Page #1 background image
Version 4
June 2005
V-DOSC

OPERATOR MANUAL

Table of Contents

Question and Answer IconNeed help?

Do you have a question about the L-Acoustics V-DOSC and is the answer not in the manual?

L-Acoustics V-DOSC Specifications

General IconGeneral
BrandL-Acoustics
ModelV-DOSC
CategoryAmplifier
LanguageEnglish

Summary

INTRODUCTION TO V-DOSC

Wavefront Sculpture Technology Fundamentals

Core principles of sound reinforcement and the problem V-DOSC addresses.

WAVEFRONT SCULPTURE TECHNOLOGY BACKGROUND

WST Acoustic Coupling Conditions

Defining conditions for effectively arraying individual sound sources for coherent coupling.

V-DOSC: THE SOLUTION

V-DOSC as a Modern Line Source Array

V-DOSC's design based on WST, satisfying criteria for coherent coupling.

V-DOSC SPECIFICATIONS

V-DOSC Enclosure Technical Data

Detailed technical specifications of the V-DOSC loudspeaker enclosure.

V-DOSC RIGGING SYSTEM

V-DOSC BUMP2 Bumper Details

Flying bumper for V-DOSC arrays, used for stacking and flying.

POWERING V-DOSC

LA48a Amplifier Power Ratings and Load Configs

Summary of LA48a amplifier ratings and load configurations for V-DOSC.

APPROVED DIGITAL SIGNAL PROCESSORS

Supported DSP Units and Preset Sources

List of approved DSP units and where to obtain presets.

OEM FACTORY PRESETS

Preset Usage Guidelines and Quality Control

Importance of OEM presets as a starting point, not to be altered.

V-DOSC PRESETS

Preset Bandwidths and Operating Modes

Summary of operating bandwidths for various V-DOSC presets.

GENERAL GUIDELINES REGARDING SYSTEM PROTECTION

Limiter Threshold Settings and Amplifier Input

Recommended limiter thresholds for system protection and gain structure.

V-DOSC COVERAGE MODELING

Horizontal Plane Coverage Analysis

Analyzing horizontal coverage using isocontours and array aiming.

COVERAGE IN THE VERTICAL PLANE

Flat V-DOSC Array Vertical Coverage

Behavior of a flat array as a line source with cylindrical wavefront.

Curved V-DOSC Array Vertical Coverage

Using angle straps for curved arrays to shape coverage and adapt to audience.

Variable Curvature V-DOSC Array

Shaping Vertical Coverage with Variable Curvature

Using variable curvature to distribute energy and match audience geometry.

V-DOSC COVERAGE MODELING USING ARRAY 2004

ARRAY 2004 Prediction Spreadsheet

Using ARRAY 2004 for predicting V-DOSC array coverage.

V-DOSC COVERAGE MODELING USING SOUNDVISION

SOUNDVISION Software Overview and Features

3D software for modeling L-ACOUSTICS systems, calculating SPL and coverage.

SOUND DESIGN

Stacked vs. Flown System Considerations

Arguments for choosing between stacked and flown V-DOSC systems based on venue.

STACKING GUIDELINES

Maximum Stack Height and Tilt Adjustments

Guidelines for stacking V-DOSC enclosures, including stability and tilt.

FLYING GUIDELINES

Array Trim Height and Angle Selection for Flying

Determining trim height and selecting angles for flown arrays based on audience.

ACHIEVING OPTIMUM COVERAGE

Left/Centre/Right (LCR) Configuration Benefits

Advantages of LCR systems for optimizing coverage and intelligibility.

SUBWOOFERS

General Guidelines for Subwoofer Application

Factors determining subwoofer requirements and general usage guidelines.

Subwoofers as Low Frequency System Extension

Driving subwoofers with the same signal as V-DOSC for a 4-way system.

Flown V-DOSC and Ground Stacked Subwoofers

Time Alignment for Flown/Stacked Subwoofer Systems

Required time alignment for flown V-DOSC and ground stacked subwoofer setups.

CENTRAL LINE ARRAY WITH ELECTRONIC DELAY PROCESSING

Electronic Delay Processing for Central Line Arrays

Using delay processing to improve directivity and tonal balance of central arrays.

LEFT/CENTRE/RIGHT CONFIGURATIONS

LCR Subwoofer Array Time Alignment Steps

Steps for time aligning LCR subwoofer arrays and hybrid configurations.

INSTALLATION PROCEDURES

Stacked System Installation Procedures

Detailed steps for stacking V-DOSC arrays, including bumper and screwjack use.

FLOWN SYSTEM

Preliminary Preparations for Flying Arrays

Data collection and checking rigging points before flying V-DOSC arrays.

Ratchet Strap Adjustments

Proper Use and Tensioning of Ratchet Straps

Guidelines for tensioning and adjusting ratchet straps for optimal coverage.

Trim and Site Angle Adjustments

V-DOSC SYSTEM OPERATION

Achieving System Tonal Balance

Setting tonal balance using DSP output gains and understanding frequency response.

MEASUREMENT PROCEDURES

Measurement Instruments and Techniques for Tuning

Using RTA, MLSSA, WinMLS for equalization and time alignment.

Step-By-Step Tuning Procedure

System Setup and Tuning Workflow

A comprehensive guide from room setup to final system tuning.

SPECIFICATIONS

RIGGING STRUCTURES

Related product manuals