JBL VLA-C-SB2 User manual

JBL Professional, 8500 Balboa Blvd, Northridge, CA 91329 Rev A- -06/2020
Figure 1
VLA-C-SB2 Installation Guide
SKU#JBLVLACSB2BK
Rev. A
The VLA-C-SB2 bracket is designed to suspend or be used as a pullback bar for the VLA-C Series
loudspeaker array. Please read and follow these instructions carefully before beginning.
Suspending speakers must be performed by experienced professionals. If you have any doubts about the
integrity of the structure you are attaching to or you are not sure about the proper hardware or method to use,
consult a structural engineer.
Contents: VLA-C-SB2-HK Hardware Kit:
Qty. Description Qty. Description
2 pcs VLA-C-SB2 Bracket assembly 12 pcs Flat washer, M10 X 30mm OD, DIN9021
(Includes 4 pcs ½-13x1.5”eyebolts) 12 pcs Split Lock washer, M10, DIN127B
1 pc Installation guide 12 pcs Hex Cap Bolt, M10x1.5-40mm, C10.9,blk
CAUTION:
Installation must be done by qualified persons using safe rigging standards. The installer is responsible for
proper selection and use of hardware to properly and safely suspend the speakers.
Refer to the VLA-C Line Array Calculator to determine safety limits of the frame with respect to the array size
and inclination.
Torque values are for reference use only. The exact torque values are found by actual application or based
upon work experience.
Recommended Working Load Limit: 1,100 lbs / 500 kg (7:1 Safety Factor)
Step 1.
Remove the Side-Panel External Trim Cover Panels from the speaker (Refer to VLA-C Series users guide).
Hold onto the screws for later use.
VLA-C-SB2 For Suspension:
Step 2:
Remove and discard the existing screws from the speaker where the top
bracket will be attached.
Step 3:
Position and align the (VLA-C-SB2) bracket’s side mounting plate on the
speaker’s mounting holes then select the appropriate holes to use for the
selected speaker tilt angles. (Figure 1).
Refer to VLA-C-Line array Calculator.

JBL Professional, 8500 Balboa Blvd, Northridge, CA 91329 Rev A- -06/2020
Figure 2 (0°)
Figure 3 (15°)
Figure 4 (30°)
Step 4:
Attach the (VLA-C-SB2) bracket on the
speaker using the provided M10 hex bolts,
flat washers, and split lock washers.
(Figure 2 = 0°)
(Figure 3 = 15°)
(Figure 4 = 30°)
(Figure 5 = 45°)
(Figure 6 = 90°)
Step 5:
Tighten screws permanently. Reference
Torque = 30-35 ft/lb

JBL Professional, 8500 Balboa Blvd, Northridge, CA 91329 Rev A- -06/2020
Figure 5 (45°)
Figure 6 (90°)
Step 6: Suspend Line array
Two Point Suspension:
Option #1.
Suspend the speaker line array cluster from the upper holes of the bracket’s side mounting plates using load
rated hardware (Figure 7a).
Option #2.
Suspend the speaker line array cluster from the two eyebolts of the bar using load rated hardware (Figure 7b).

JBL Professional, 8500 Balboa Blvd, Northridge, CA 91329 Rev A- -06/2020
Figure 8 (Single Suspension)
Figure 7a (Two Point Suspension)
Figure 7b (Two Point Suspension)
Figure 9
Single point suspension:
Unscrew one of the eyebolts and move to the center hole of
the bar. Tighten permanently. Suspend the speaker cluster
from the center eyebolt using load rated hardware (Figure
8).
Note:
The direction of the crossbar’s eyebolt must be inline with
the direction of the pull or the cable. Slightly loosen the end
bolts holding the round cross bar. The crossbar will naturally
rotate axially so that the eyebolt is in-line with the direction
of pull (ie, for maximum weight-carrying capability of the
eyebolt). Then, re-tighten the two end bolts after position of
crossbar eyebolts are set (Figure 9)
Reference Bolt torque = 45-55 ft/lb

JBL Professional, 8500 Balboa Blvd, Northridge, CA 91329 Rev A- -06/2020
Figure 10
Figure 12 (0°)
Figure 11 (90°)
VLA-C-SB2 For Pull Back
Step 7:
Unscrew one of the eyebolts and move to the center
hole of the bar. Tighten permanently (Figure 10).
Step 8:
90 Degrees Position
Remove and discard the existing 3 bottom screws
from the speaker’s mounting holes where the (VLA-
C-SB2) bracket will be attached.
Step 9:
Position the (VLA-C-SB2) bracket’s side
mounting plate on the speaker’s mounting
holes, align holes, then secure using the
provided M10 hex bolts, split lock washers
and flat washers (Figure 11).
Step 10:
Tighten screws permanently. Reference
Torque = 30-35 ft/lb
Step 11:
0 Degrees Position
Remove and discard the existing 2 bottom
screws from the speaker’s mounting holes
where the (VLA-C-SB2) bracket will be
attached.
Step 12:
Position the bracket’s side mounting plate
on the speaker’s two bottom mounting
holes, align holes then secure
using the provided M10 hex
bolts, split lock washers and flat
washers. (Figure 12).
Step 13:
Tighten screws permanently.
Reference Torque = 35-40 ft/lb
Step 14:
Attach load rated pull back
cable to the center eyebolt of
the bracket. Slightly loosen the
end bolts holding the round
cross bar so that the crossbar
will naturally rotate axially, and
the eyebolt is in-line with the
direction of pull. Re-tigthen
bolts. Reference Torque = 45-
55 ft/lb (Figure 13).

JBL Professional, 8500 Balboa Blvd, Northridge, CA 91329 Rev A- -06/2020
Figure 13
Figure 14 (0°)
Figure 15 (15°)
Step 15:
Re-attach the Side-Panel External Trim
Cover Panels to the side plates of the
speaker using the same 8-32x1/2”
trusshead screws. Apply Loctite
Threadlocker Blue 242 or equivalent to
screws before re-attaching (Refer to VLA-
C Series users guide).
Step 16:
Check all screws and attachment
connections before hoisting speaker
cluster.
VLA-C-SB2 for VLA-C-125S
Subwoofer Suspension
Step 17.
Remove the Side-Panel External Trim
Cover Panels from the speaker
(Refer to VLA-C Series users guide).
Hold onto the screws for later use.
Step 18:
Attach the (VLA-C-SB2) bracket on
the VLA-C125S Subwoofer using the
provided M10 hex bolts, flat washers,
and split lock washers.
(Figure 14 = 0°)
(Figure 15 = 15°)
(Figure 16 = 30°)
(Figure 17 = 45°)
Warning:
Do not use 90° bracket setting when
VLA-C125S is at the top of the array.
Step 19:
Tighten screws permanently.
Reference Torque = 30-35 ft/lb

JBL Professional, 8500 Balboa Blvd, Northridge, CA 91329 Rev A- -06/2020
Figure 16 (30°)
Figure 17 (45°)
Figure 18
VLA-C-SB2 For VLA-C125S Pull Back
Note:
VLA-C-SB2 as Pull Back at the bottom of VLA-
C125S must only be set at either 0 degrees or 90
degrees.
Step 20:
Unscrew one of the eyebolts and move to the
center hole of the bar. Tighten permanently (Figure
18).
Step 21:
For setting Pull Back at 0°:
Remove and discard the existing 2 bottom screws
from the subwoofer’s mounting holes where the
(VLA-C-SB2) bracket will be attached (Figure 19).

JBL Professional, 8500 Balboa Blvd, Northridge, CA 91329 Rev A- -06/2020
Figure 19 (0°)
Figure 20 (90°)
Figure 21
Step 22:
For setting Pull Back at 90°:
Remove and discard the existing
3 screws from the subwoofer’s
mounting holes where the (VLA-
C-SB2) bracket will be attached.
Position the (VLA-C-SB2)
bracket’s side mounting plate on
the subwoofer’s mounting holes,
align holes, then secure using the
provided M10 hex bolts, split lock
washers and flat washers (Figure
20).
Step 23:
Tighten screws permanently.
Reference Torque = 35-40 ft/lb
Step 24:
Attach load rated pull back cable
to the center eyebolt of the
bracket. Slightly loosen the
end bolts holding the round
cross bar so that the crossbar
will naturally rotate axially,
and the eyebolt is in-line with
the direction of pull. Re-
tigthen bolts. Reference
Torque = 45-55 ft/lb (Figure
21).
Step 25:
Re-attach the Side-Panel
External Trim Cover Panels
to the side plates of the
speaker using the same 8-
32x1/2”trusshead screws.
Apply Loctite Threadlocker
Blue 242 or equivalent to
screws before re-attaching
(Refer to VLA-C Series users
guide).
Step 26:
Check all screws and attachment
connections before hoisting speaker
cluster.