Electro-Voice Sb122 Manual

Electro-Voice Højttaler Sb122

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Electro-Voice® Sx/Sb-Series 12” Systems Rigging Manual

Sx/Sb-Series 12” Systems

Rigging Manual

Sx-Series

Sb-Series

Electro-Voice® Sx/Sb-Series 12” Systems Rigging Manual1

The Mb Kits

Electro-Voice® manufactures three accessories to make the sus-

pension of Sx/Sb-Series enclosures safe, easy and cost-effective:

the Mb100 Eyebolt Attachment Kit, the Mb200 Installation Kit and

the Mb300 Horizontal Array Kit. This instruction sheet gives a brief

overview of how each of these suspension kits could be used so the

correct kit can be selected. In addition, each of the suspension kits

includes a separate instruction sheet with complete dimensions and

full details for use.

Suspending Sx/Sb-Series Enclosures

The molded enclosures used in Sx/Sb-Series are lightweight and

structurally sound. Each enclosure has four metric M8 x 1.25 metal

inserts molded into the enclosure to aid in suspension and aiming.

A single insert, correctly used, will safely suspend the weight of one

enclosure with a safety factor in excess of 5 to 1. It will not support

additional weight with a sufficient safety factor for overhead lifting. If

multiple Sx/Sb-Series enclosures are suspended, Mb200 Installation

Kits must be used to support and aim each enclosure.

Mb100 Eyebolt Attachment Kit

The Mb100 Eyebolt Attachment Kit is intended for very simple instal-

lations only, to suspend an individual Sx/Sb-Series loudspeaker in a

near-vertical orientation (see Figure 1). A second, redundant insert

point is provided in the top of the enclosure so a supplementary

independent means of suspension can be attached when regulations

specify. The enclosure can be positioned to angle downward slightly

through the use of the pull-up point at the back of the enclosure.

Note that two top suspension cables should be used at all times to

provide needed stability to the installation (see Figure 1).

Do not suspend Sx/Sb-Series enclosures face down from

the ceiling using the Mb100 Eyebolt Attachment Kit. The M8

eyebolts are not rated for lifting loads at 90°, and such a configuration

makes stabilization of the enclosure difficult. Instead, use the Mb200

Installation Kit for this and most other situations (see the Mb200

Installation Kit section).

Mb200 Installation Kit

The Mb200 Installation Kit provides a cost-effective and safe means

of attaching Sx/Sb-Series loudspeakers to walls or suspending them

overhead (see Figure 2). The kit contains a large, reinforced-steel

bracket with a selection of thru-holes which allow the bracket to be

mounted to different surfaces in a range of orientations. This kit is rec-

ommended for most installations, and is essential when arraying Sx/

Sb-Series loudspeakers.

The Mb200 U-bracket extends from top to bottom of the Sx/Sb-Se-

ries loudspeaker and attaches at both ends. This securely “captures”

the enclosure, allowing further loudspeaker systems to be added

without increasing the stress on the first enclosure. It also allows the

loudspeaker to be aimed in the desired direction and locked in place.

For even greater flexibility, three-hole-pattern groups compatible with

the OmniMount® 60.0 (originally Series 100) 1 support system have

also been incorporated into the Mb200 Installation Kit's U-bracket

(see Figure 2B, reference A).

Vertical arrays can be constructed by "daisy chaining" Mb200's to-

gether (see Figure 3). To achieve a slight downward angle, attach an

additional cable to the lower Mb200 and use this cable to pull up the

array, securing the cable at the desired angle and position.

No more than two enclosures should be suspended in a vertical array

in this manner. If a taller array is required, you should provide a means

of independent suspension for the remaining enclosures.

Again, note the use of two top suspension cables (see Figure 3)

which provide stability and should be used at all times.

WARNING: Suspending any object is potentially dangerous and should only be attempted by individuals who have a thorough knowledge

of the techniques and regulations of rigging objects overhead. Electro-Voice strongly recommends that the Sx/Sb-Series enclosures be sus-

pended taking into account all current national, federal, state and local regulations. It is the responsibility of the installer to ensure the loud-

speaker is safely installed and in compliance with all regulations. If the loudspeaker is suspended, Electro-Voice strongly recommends that the

system be inspected at least once a year. If any sign of weakness or damage is detected, remedial action should be taken immediately.

Horizontal Array

Number of Enclosures

in Array:

Number of Kits Required

Mb200 Mb300

2 2 1

3 3 2

4 4 3

5 5 4

(Complete Circle) 6 6

Each Mb300 Horizontal Array Kit consists of two connector brackets

(one top, one bottom) plus the hardware required to join these brack-

ets to the U-brackets from two Mb200 Installation Kits. This combina-

tion of one Mb300 Horizontal Array Kit plus two Mb200 Installation

Kits forms a solid frame suitable for suspending two Sx/Sb-Series

loudspeakers in a horizontal array (see Figure 4). Holes are provided

in the Mb300 brackets for attaching cables for suspension.

Two mounting angles, 50° and 60°, are possible using the Mb300

Horizontal Array Kit. Use of the 50° angle results in a tight array with

speaker sides touching (see Figure 5); use of the wider orientation

results in improved coverage for multiple loudspeakers and allows

construction of a complete, 360° array (see Figure 6 for diagram of

one half of a 360° array). A vertical array can also be constructed

using the Mb300 Horizontal Array Kit, but relatively few aiming angles

are available.

1. OmniMount® is a registered trademark of OmniMount Systems, Inc.

For more information, visit www.omnimountpro.com

NOTE: The Mb200 mounting brackets will not work

with powered (amplified) versions of the Sx/Sb-Series.

Flush-mounted input panels (as opposed to recessed

input panels on passive versions) cause the U-bracket

to interfere with cables connected to the rear of the

loudspeaker.

Mb300 Horizontal Array Kit

The Mb300 Horizontal Array Kit must be used in conjunction with the

Mb200 Installation Kit. Select the required number of kits from the

chart below:

Produkt Specifikationer

Mærke:	Electro-Voice
Kategori:	Højttaler
Model:	Sb122

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