Electro-Voice MB100 installation instructions Eye-Bolt Attachment Kit

FIGURE 1 — Eye Bolt Installation

Eye-Bolt Attachment Kit

• Mounting kit for System 200TM speakers: Sx100, Sx200 and Sb1201

• Provides three attachment points for secure suspension of a single speaker cabinet

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1. At time of publication, only these models were available in the System 200TM series, but additional models are planned. The general concepts and instructions given here should remain applicable for later models.

SPECIFICATIONS:

Eye Bolts:

M8 x 1.25 x 13 mm—eye diameter:

20mm (3/4 in.)

Material:

Drop forged steel, black nickel plated

Net Weight:

0.2 kg (0.44 lb)

Shipping Weight: 0.3 kg (0.60 lb)

CAUTION:

Suspending any object is potentially dan- gerous and should be attempted only by individuals who have a thorough knowl- edge of the techniques and regulations of rigging objects overhead. Electro-Voice sanctions suspending the System 200TM speakers only when all current national, federal, state and local regulations are taken into account. When the System 200TM speaker is suspended, Electro-Voice strongly recommends that the system be inspected at least once a year. If any sign of weakness is detected, corrective action should be taken immediately.

DESCRIPTION

The Mb100 is intended for very simple installa- tions only, to suspend an individual Sx100, Sb120 or Sx200 loudspeaker in a near-vertical orientation (see Figure 1).2 A second, redun- dant 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 po-

The Mb100 Eye-Bolt Attachment Kit contains three lifting eye-bolts which screw into the in- serts provided on the System 200TM speakers. The eyebolt attachment points can then be used to suspend the System 200TM speakers using hardware rated for overhead lifting.

Note that two top suspension cables should be used at all times to provide needed stability to the installation (see Figure 4).

Do not suspend System 200TM 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 enclo- sure difficult. Instead, use the Mb200 Installa- tion Kit for this and most other situations.

HANGING INSTRUCTIONS

The speaker is hung using one or two main lifting “chains” with a pull-up point in the back for aiming. Two lifting chains can be used to pre- vent the speaker from swaying, but both of the rigging hardware (shackles, etc.) must fit through the 20-mm (3/4-in.) opening.

INSTALLATION INSTRUCTIONS

(see Figure 1)

1.From the speaker, remove the plastic hole plugs, gently prying them with a small screw driver.

2.Screw the eye bolt into the insert until the shoulder has contacted the plastic.

3.Finger tighten eye bolt until correct align- ment position is obtained, a maximum of one-half turn (see Figure 2).

CAUTION: OVER TIGHTENING THE EYE BOLT WITH A WRENCH, SCREW DRIVER, etc. CAN RESULT IN SYSTEM FAILURE AND INJURY.

4.Use certified hardware rated for overhead lifting to suspend the speaker (see Figure 3).

STRENGTH RATING

The Mb100 Eye-Bolt Attachment Kit and the SystemTM 200 speaker enclosure are rated for suspending only one speaker (5:1 safety fac- tor). Hanging any additional weight from the speaker will exceed its strength rating and create an unsafe condition. Table 2 lists the strength ratings for the M8 eye bolts. The eye bolts are not rated for angles greater than 45 degrees (see Figure 2). An exception to this would be the eye bolt which is used for speaker aiming and not for a main load-bearing point; the angle on that eye bolt can exceed 45 degrees.

sitioned to angle downward slightly through the use of the pull-up point at the back of the enclosure.

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2.The Mb100 Eyebolt Attachment Kit is not recommended for suspension of active systems such as the Sb120a.

TABLE 1 — Contents

Reference Letter	EV Part No.	Quantity	Description
A	20592	3	M8x 1.25 x 13 mm lifting eye bolt