L-Acoustics ARCS User Manual

L-ACOUSTICS ARCS Manual V2.0 2/13/2003 46
Table 12: ARCBUMP Pick Point Hole Number versus Tilt Angle for 2, 3 or 4 ARCS
(hole #1 = rear pick point, ARCBUMP serial number plate towards the front)
Hole
Number
2 ARCS
Tilt Angle (deg)
3 ARCS
Tilt Angle (deg)
4 ARCS *
Tilt Angle (deg)
1 -35 -15.5 -1
2 -31 -11 2
3 -26.5 -7.5 6
4 -22 -3.5 9
5 -16.5 -0.5 12.5
6 -11.5 4 15
7 -4 7.5 18.5
8 1.5 12 21
9 7.5 16 24
10 13 18.5 27
11 18 22.5 29
12 23 27 31.5
13 27.5 30 34
14 32 33 36
15 35.5 36 38
16 39 38 39.5
17 42 41 41
18 45 43 44.5
* For flying 4 ARCS enclosures horizontally, a bridled hang should be performed
using the exterior points on the sides of the ARCBUMP frame.
* Bridled hangs are also recommended for 1-3 ARCS arrays in order to
compensate for ARCS enclosure center of gravity offset in the horizontal plane.
5.4 SAFETY RULES
Always consult a certified rigger if you have any questions regarding safe rigging practice.
L-ACOUSTICS recommends the use of safety steels at all times.
Always install two ARCOUPL coupling bars between adjacent enclosures (top and bottom). This
applies to either flown or stacked installations.
Single point hangs can be performed using the rigging points available on the central spreader bar
section of ARCBUMP for rigging up to 3 ARCS enclosures horizontally. For flying 4 ARCS enclosures
horizontally, a bridled hang should be performed using the exterior points on the sides of the
ARCBUMP frame. Safety steels must be employed for all flown horizontal applications using
ARCBUMP.

L-Acoustics ARCS Specifications

General

Brand	L-Acoustics
Model	ARCS
Category	Speakers
Language	English