Rigging and curving cohedra, Compact system – HK Audio CDR 210 F User Manual

Page 41

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Figure 10: Horizontal array comprising three CDR 108 Cs

Figure 11: CDR 108 C set angle in compression mode: 4.5°

Figure 12: Open case with four CDR 108 C enclosures

Figure 13: Rigging frame set to 0°

Setting Up a Horizontal Array
You can configure up to three CDR 108 C enclosures
in a horizontal array using quick-release pins. Connect
three CDR 108 C enclosures and set the splay between
the enclosures for fixed mode and in accordance with
the given requirements. To learn more about this,
read the chapter Determining the Splay Between Two
CDR 108 C Enclosures. To do this, you will need two
quick-release pins with 10-mm uptake and adequate
load-carrying capacity. Mount these to the outermost
enclosures, where they will serve as fixing points for
flying the rig (see Fig. 10).

3.2 Flying Arrays with Light-
weight Rigging Frames

As an alternative to the standard rigging frame that
flies up to sixteen CDR 108 C enclosures, you can
opt to use the lightweight rigging frame designed
to accommodate up to six CDR 108 Cs. The rigging
procedure is the same as for the standard rigging
frame. However, the lightweight rigging frame may
be adjusted to the 0° position only on the rear rigging
connector!

4 Determining the Splay
Between Two CDR 108 C
Enclosures

You have two options for setting the splay between
CDR 108 C enclosures - compression mode and fixed
mode. In compression mode, the angle is easily
adjusted after the array has been flown. This requires
a lashing-strap or chain hoist. In fixed mode, the angle
is determined during setup and the flown array cannot
be adjusted later. This option does not require a
lashing-strap or chain hoist. Compression mode
is recommended for setups comprising 12 to 16 mid/-
high enclosures; fixed mode for smaller configurations.

4.1 Compression Mode

Determine the splay between two enclosures by
adjusting a single pin (Set Angle). One person can
easily perform the entire process of curving arrays.

The following angles may be adjusted between two
CDR 108 C enclosures: 0°, 1.5°, 3°, 4.5°, 6°, 7.5° and 9°.

The rigging equipment is designed so that the splay
can be adjusted when COHEDRA

®

Compact arrays

have been lifted.

How is this done?
The pin that determines the splay (Set Angle) is
merely a predefined stop for the flexible connector
component when the entire COHEDRA

®

Compact

array is compressed accordion-style at the back and
thereby adjusted using a lashing strap or chain hoist.

When no force is exerted, the entire mid/high array
is suspended at 0°, meaning that the pin (Set Angle)
is easily repositioned (see Fig. 11)!

Important note: The pin labeled Link connects
individual CDR 108 C cabinets. Ensure this pin
is inserted, otherwise the enclosures will not be
connected to each other and may swing forward!

Preparations
The following section describes how to set up an
array in compression mode. Use COHEDRA

®

CAPS

to select rigging frame pick points for determining
the angles between CDR 108 C enclosures.

Move the open case with the CDR 108 C enclosures
in position. Remove the top cover.

Mounting the Rigging Frame
The tasks described below require two people.
Remove the quick-release pins from the rigging frame
and the two pins on the back of the top CDR 108 C
enclosure. Set the rigging frame on the enclosure.
First attach the two front connectors. Turn the rigging
frame’s connector component down and slide it
into the rear rigging connector.

Important:
The standard rigging frame’s connector component
is longer than that of mid/high cabinets. This means
that you can also set ascending angles, for example,
for covering balconies, terraces, etc. Bear in mind
that a 0° angle between rigging frames and the first
1 CDR 08 C enclosure is set using the hole labeled
9° on the mid/high unit (see Table 3)! To mount the
rigging frame, always employ the fixed mode option
as follows:

Insert the first pin through the hole labeled 9° on
the enclosure and attach the connector component
by inserting the second pin through the slot into the
hole labeled 6° (see Fig. 13).

Attach to the top rigging frame the shackle destined
to accept the motor hook (see Fig. 14). Your choice of
pick point depends on how sharply you aim to curve
the array later.

Rigging and Curving COHEDRA

®

Compact System

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