d&b TI 385 d&b Line array design User Manual

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Contents
1. Introduction..................................................4

2. The J-Series line array...................................4
2.1 Number of cabinets required............................................4
2.2 J-SUB subwoofer setup.......................................................4
2.2.1 J-SUB ground stacks........................................................5
2.2.2 J-SUBs flown on top of a J8/J12 array........................5
2.2.3 Flown J-SUB columns.......................................................5
2.2.4 J-SUB horizontal SUB array............................................5
2.3 J-SUB/J-INFRA subwoofer setup.......................................5
2.3.1 Combined J-INFRA/J-SUB ground stacks.....................5
2.3.2 Flown J-SUBs, J-INFRA ground stacks...........................5
2.3.3 Flown J-SUBs, J-INFRA SUB array.................................5

3. The V-Series line array..................................6
3.1 Number of cabinets required............................................6
3.2 V-SUB subwoofer setup......................................................6
3.2.1 V-SUB ground stacks.......................................................7
3.2.2 V-SUBs flown on top of a V8/V12 array.....................7
3.2.3 Flown V-SUB columns......................................................7
3.2.4 V-SUB horizontal SUB array..........................................7
3.3 V-, J-SUB/J-INFRA subwoofer setup..................................7
3.3.1 Combined J-, V-SUB ground stacks...............................7
3.3.2 Flown V-, J-SUBs or J-INFRA ground stacks..................7
3.3.3 Flown V-SUBs, J-INFRA SUB array................................7

4. The Y-Series line array..................................8
4.1 Number of cabinets required............................................8
4.2 Y-SUB subwoofer setup......................................................8
4.2.1 Y-SUB ground stacks.......................................................9
4.2.2 Y-SUBs flown on top of a Y8/Y12 array.....................9
4.2.3 Flown Y-SUB columns......................................................9
4.2.4 Y-SUB horizontal SUB array...........................................9
4.3 V-, Y-, J-SUB/J-INFRA subwoofer setup............................9
4.3.1 Combined J-, Y-SUB ground stacks...............................9
4.3.2 Flown Y-, J-SUBs or J-INFRA ground stacks..................9
4.3.3 Flown Y-SUBs, J-INFRA SUB array................................9

5. The Q-Series line array................................10
5.1 Number of cabinets required..........................................10
5.2 Subwoofer setup...............................................................10

6. The T-Series line array.................................12
6.1 Number of cabinets required..........................................12
6.2 Subwoofer setup...............................................................12

7. The xA-Series line array..............................13
7.1 Number of cabinets required..........................................13
7.2 Subwoofer setup...............................................................13

8. The d&b point sources.................................14
8.1 Number of cabinets required..........................................14

9. Column loudspeakers..................................14

10. ArrayCalc..................................................15
10.1 ArrayCalc installation....................................................15
10.2 Starting ArrayCalc.........................................................15
10.3 ArrayCalc menu options and Toolbar.........................16
10.3.1 File menu......................................................................16
10.3.2 View menu...................................................................16

10.3.3 Sources menu..............................................................16
10.3.4 Extras / Options menu...............................................16
10.3.5 Help menu...................................................................16
10.4 ArrayCalc workspace....................................................17
10.5 Venue page.....................................................................17
10.5.1 General data input.....................................................17
10.5.2 Project settings.............................................................17
10.5.3 Venue editor................................................................17
10.6 Sources page..................................................................20
10.6.1 Adding and deleting sources....................................20
10.7 Line Arrays.......................................................................20
10.7.1 Array settings...............................................................20
10.7.2 Auto Splay...................................................................23
10.7.3 Copy, Paste, Paste as new.........................................23
10.7.4 Mechanical load conditions for arrays...................24
10.7.5 Array view and load distribution..............................25
10.7.6 Top view diagram for arrays.....................................25
10.7.7 Profile at array aiming................................................25
10.7.8 SPL plot and signal selection for arrays...................26
10.7.9 Maximum SPL and headroom..................................27
10.7.10 Air absorption, HFC circuit......................................27
10.7.11 Array EQ / CPL........................................................28
10.7.12 Level adjustment (Lev/dB).......................................28
10.7.13 Horizontal arrays of J8, V8, Y8, Q1 and T10
columns......................................................................................28
10.8 Point sources...................................................................29
10.9 Column loudspeakers....................................................29
10.9.1 Point source SPL mapping.........................................31
10.9.2 Simulation limits...........................................................32
10.10 SUB arrays....................................................................32
10.10.1 General considerations on stacked subwoofer
placement..................................................................................32
10.10.2 L/R ground stack......................................................32
10.10.3 Design criteria...........................................................33
10.10.4 Physical placement of cabinets..............................33
10.10.5 Shaping the wavefront using delays.....................34
10.10.6 SUB array settings....................................................35
10.10.7 Mixed arrays of J-, V-SUBs and J-INFRAs.............37
10.10.8 Dispersion displays..................................................37
10.11 Alignment page...........................................................38
10.11.1 Time alignment of SUB arrays................................39
10.12 3D plot page................................................................40
10.13 Amplifiers page............................................................42
10.13.1 Create R1 files..........................................................42
10.13.2 Patches.......................................................................42
10.13.3 Patch dialog..............................................................42
10.13.4 Cabinets section.......................................................43
10.14 Snapshot manager......................................................43
10.15 Rigging plot page........................................................44
10.16 Parts list page...............................................................44
10.17 Ground stacked setups...............................................44
10.18 CPL circuit......................................................................45
10.19 Time alignment.............................................................46
10.19.1 Subwoofers...............................................................46
10.19.2 Nearfills.....................................................................46
10.19.3 Horizontal array.......................................................47
10.20 Equalization..................................................................47

11. ArrayProcessing........................................48
11.1 Motivation and benefits................................................48

TI 385 (6.0 EN) d&b Line array design, ArrayCalc V8.x

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