L-Acoustics V-DOSC User Manual

L-ACOUSTICS V-DOSC Manual Version 4 6/29/2005 Page 8 of 158
LIST OF FIGURES
Figure 1: Wavefront interference versus a sculptured V-DOSC wavefront.................................................... 12
Figure 2: Wavefront Sculpture Technology Conditions 1 and 2 Illustrated.................................................... 13
Figure 3: Coplanar Symmetry of V-DOSC .....................................................................................................15
Figure 4: Cylindrical versus spherical wave propagation................................................................................16
Figure 5: V-DOSC Array ................................................................................................................................17
Figure 6: V-DOSC System Block Diagram .....................................................................................................20
Figure 7: LR System Configuration .................................................................................................................21
Figure 8: LR System Plus Offstage Fill Configuration..................................................................................... 22
Figure 9: V-DOSC system loudspeakers plus accessories.............................................................................. 23
Figure 10: V-DOSC Rigging Accessories .........................................................................................................25
Figure 11: V-DOSC Subwoofer Options.........................................................................................................26
Figure 12: Subwoofer Rigging Accessories ......................................................................................................26
Figure 13: L-ACOUSTICS LA48a Power Amplifier.........................................................................................27
Figure 14: Amplifier Rack Options and Accessories........................................................................................ 28
Figure 15: Signal distribution and cabling......................................................................................................... 30
Figure 16: Loudspeaker cabling options ..........................................................................................................32
Figure 17: V-DOSC Enclosure - Front and Rear Views...................................................................................33
Figure 18: V-DOSC BUMP2............................................................................................................................34
Figure 19: BUMPDELTA .................................................................................................................................35
Figure 20: SB218 Subwoofer – Front and Rear Views ....................................................................................36
Figure 21: BUMPSUB SB218 Flying Bar .......................................................................................................... 37
Figure 22: V-DOSC PADO4a Amplifier Rack Panel........................................................................................40
Figure 23: V-DOSC PADO2a Amplifier Rack Panel........................................................................................40
Figure 24: PADO4a amp rack wiring...............................................................................................................41
Figure 25: PADO2a amp rack wiring...............................................................................................................42
Figure 26: L-ACOUSTICS Amplifier Rack RK124a loaded with 4 x L-ACOUSTICS LA48a amplifiers........... 43
Figure 27: L-ACOUSTICS Amplifier Rack Options......................................................................................... 44
Figure 28: L-ACOUSTICS RK122a amplifier rack channel assignments and cabling.......................................46
Figure 29: L-ACOUSTICS RK124a amplifier rack channel assignments and cabling.......................................46
Figure 30: L-ACOUSTICS RK122a amp rack channel assignments for 2-way, 3-way stereo presets ............ 47
Figure 31: L-ACOUSTICS RK124a amp rack channel assignments for 2-way, 3-way stereo presets ............ 48
Figure 32: CO24 Control Output Panel..........................................................................................................49
Figure 33: MD24 Multi Distro Panel................................................................................................................ 50
Figure 34: CO6 Control Output Panel............................................................................................................ 50
Figure 35: Spectral balance for SUB/LOW versus MID/HI Sections ...............................................................53
Figure 36: Spectral balance for SUB/LOW versus MID/HI Sections (V6 presets and earlier).........................53
Figure 37: Infra preset time alignment procedure...........................................................................................55
Figure 38: 4W preset time alignment procedure ............................................................................................55
Figure 39: X preset time alignment procedure ...............................................................................................56
Figure 40: X AUX preset time alignment procedure......................................................................................56
Figure 41: 5W Infra preset time alignment procedure ....................................................................................57
Figure 42: 5W X preset time alignment procedure ........................................................................................57
Figure 43a: Horizontal V-DOSC isocontour averaged from 630 Hz - 16 kHz ...............................................63
Figure 43b: Horizontal V-DOSC isocontour averaged from 32 Hz - 630 Hz ................................................. 63
Figure 44: Constant Curvature Array Examples. ............................................................................................65
Figure 45: Defining Cutview Dimensions ........................................................................................................ 67
Figure 46: Parameters for the ROOM DIM Utility Sheet in ARRAY ............................................................... 68
Figure 47 (a): Cutview showing non-constant enclosure site angle impact spacing........................................69
Figure 47 (b): Cutview showing constant enclosure site angle impact spacing...............................................69
Figure 47 (c): Plan view representation of non-constant (a) versus constant spacing (b) arrays ....................69
Figure 48: ARRAY 2004 Geometric Data for V-DOSC...................................................................................71
Figure 49: ARRAY 2004 Geometric Data for dV-DOSC.................................................................................73
Figure 50: ARRAY 2004 spreadsheet calculation example .............................................................................. 75

L-Acoustics V-DOSC Specifications

General

Brand	L-Acoustics
Model	V-DOSC
Category	Amplifier
Language	English