Extron electronics SB 33 A Series Manuale utente

IMPORTANT:

Go to www.extron.com for the complete

user guide, installation instructions, and

specifications before connecting the

product to the power source.

SB 33 A Series • Setup Guide

Product Description

The SB 33 A speaker is an under-the-display powered soundbar speaker for use in small-to-medium conference rooms. It

features two 3"full range speaker drivers driven by an internal amplier module. The SB 33 A accepts analog and unbalanced

stereo input signals. Three individually buffered inputs are available so three separate sources can be connected without altering

performance.

The SB 33 A speaker enclosure is adjustable to match the width of the display and is mounted under the display. It features

an adjustable shelf to accommodate the mounting of a web cam or small conferencing camera. The SB 33 A is offered in four

different sizes to accommodate screen sizes from 46"to 80", as shown in the table below.

Installation Overview

The installation of the SB 33 A speaker uses the included wallplate to mark the wall where the SB 33 A is being mounted. After

the wallplate is attached to the wall the SB 33 A is then attached to the wallplate. The following section describes the mounting

procedure for safely and securely mounting the speaker.

NOTE: Install the wallplate onto wall material using common installation methods with applicable hardware dictated per

local building code.

Option Fit Display Size (diagonal) Fit Display Width Speaker Module Width

SB 33 A 46-55 46"— 55"40"— 49" (101.6 cm — 124.5 cm) 16.25" (41.3 cm)

SB 33 A 55-65 55"— 65"48"— 57" (121.9 cm — 144.8 cm) 20.25" (51.4 cm)

SB 33 A 65-70 65"— 70"56"— 65" (142.2 cm — 165.1 cm) 24.25" (61.6 cm)

SB 33 A 75-80 75"— 80"64"— 73" (162.6 cm — 185.4 cm) 28.25" (71.8 cm)

40"- 49"

SB 33 A 46-55

48"- 57"

SB 33 A 55-65

56"- 65"

SB 33 A 65-70

64"- 73"

SB 33 A 75-80

SB 33 A Series • Setup Guide (Continued)

Preparing the Mounting Location

Display

Left Speaker ModuleCenter

Bracket

Right Speaker Module

NOTE: Observe all applicable building codes and local ordinances when installing the SB 33 A speaker.

Before starting the installation, remove the center section assembly from the packaging and do the following:

Screws (2)

Grille

Center Section Cover

Lock Washers (2)

Center Bracket

Screws (2)

Web Camera

Mount

Grille Hoo

1. Remove the front grille from the center section cover using a grille hook.

2. Remove the center section cover from the center bracket standoffs by removing the two screws.

3. Remove the web camera mount from the center bracket (if necessary) by removing the two screws and lock washers that

attach it to the center bracket.

Installing the Wallplate on a Non-masonry Wall

NOTE: When attaching the wallplate to masonry, see Installing the wallplate on a masonry wall on page 4.

1. Mark the locations of the wall studs through the top vertical slots and bottom horizontal slots where four screws (not

included) will secure the SB 33 A speaker wallplate to the wall. Position and level the included wallplate (shown on the next

page) under the display screen (see the illustration above at the top of the page).

NOTES:

• If the wallplate cannot be attached to two studs, the wallplate can be offset such that one side of the wallplate can

be attached to one stud and the other end of the wallplate can be attached to the wall using two (not included)

1/4"Kap Toggles. If the stud must come down the middle of the wallplate, secure the wallplate to the stud using

two screws and to the wall using two (not included) 1/4" Kap Toggles (one on the leftmost top slot and one on the

rightmost top slot)

• The center of the wallplate does not need to be precisely aligned with the center of the display above it because the

speaker module on either end of the wallplate can be adjusted on the wallplate.

NOTE: Assuming that the display screen is level, allow for some space between the bottom of the display screen and

the top of the speaker because the speaker assemblies and the center bracket attach to the wallplate by hooking the

top mounting clasps of the speaker assemblies and center bracket over the top mounting rail of the wall plate.

To allow sufficient clearance between the top of the SB 33 A and the display screen above it, allow for at least a

minimum clearance of 11/16 inches (17.5 mm) between the highest part of the top rail of the wallplate and the top of

the speaker, as shown below. The display screen should not encroach into this area above the top rail.

INPUTS

POWER

MAX

12V

0.7A

OUTPUT

REMOTE

LRLEVEL BASS TREBLE

10V 50mA

CLASS 2 WIRING

L SPEAKER

Wallplate

Side View

11/16"

(17.5 mm)

Wall

Minimum clearance between top of wallplate

and bottom of display is 11/16" (17.5 mm).

2. If necessary, cut a hole in the wall to route cables to the SB 33 A speaker.

3. Drill four pilot holes through the marked locations on the wall.

4. Screw the wallplate to the wall studs using four #14 x 1 3/4"self-tapping wood or metal screws and four 1/4"SAE washers

into the pilot holes.

NOTE: Use wood or metal screws depending on whether the studs are wood or metal.

Wall Stud

Wallplate

1/4" SAE Washer (x4)

#14 x 1 3/4" Self-tapping

Metal or Wood Screws (x4)

SB 33 A Series • Setup Guide (Continued)

Installing the Wallplate on a Masonry Wall

Mount the wallplate on a brick, stone, or concrete wall by doing the following:

1. Follow steps 1 and 2 of “Installing the wallplate on a non-masonry wall” starting on page 2.

NOTE: Because masonry installation does not involve wall studs, position the wallplate so that the mounting holes will

evenly distribute the weight of the SB 33 A.

2. Using a masonry drill bit, drill four pilot holes in the masonry wall at the locations you marked in step one.

NOTE: If you drill the pilot hole too shallow, the screw head might break off while it is being fastened into the hole.

Mounting Holes

Wallplate

NOTE: The center of the wallplate does not need to be precisely aligned with the center of the display above it because

the speaker module on either end of the wallplate can be adjusted on the wallplate.

3. For each pilot mounting hole:

a. Insert a 1/4"x 1 3/4"masonry screw through a 1/4"SAE washer.

b. Position the wallplate over the pilot holes

c. Insert each screw and washer through the wallplate and into the pilot hole.

Wallplate

1/4" SAE Washer (x4)

1/4" x 1 3/4"

Masonry Screws (x4)

d. Securely tighten the four screws to the wallplate.

Attaching the SB 33 A to the Wallplate

ATTENTION:

• When attaching either speaker assembly or the center section to the wallplate, avoid damaging or scratching the

speaker assembly and center section cover.

• Lorsque vous xez les enceintes ou la section centrale à la plaque murale, prenez garde à ne pas endommager ni

à rayer les enceintes et le couvercle de la section centrale.

1. Hook the top clasp edge of the left speaker assembly over the top rail (1) of the wallplate and slide it to left end of the

wallplate (2) so that the left end of the speaker assembly is aligned with the left end of the display.

Wallplate Screws (2)

Left Speaker

DISPLAY

Left Speaker Wallplate

Side View Side ViewFront View

Wall Wall

Tighten the two set screws on (3)the bottom of the left speaker assembly to the bottom rail of the wallplate.

2. Hook the top clasp edge of the right speaker assembly over the top rail (1) of the wallplate and slide it to right end of the

wallplate (2) so that the right end of the speaker assembly is aligned with the right end of the display.

INPUTS

POWER

MAX

12V

0.7A

OUTPUT

REMOTE

LRLEVEL BASS TREBLE

10V 50mA

CLASS 2 WIRING

L SPEAKER

INPUTS

POWER

MAX

12V

0.7A

OUTPUT

REMOTE

RLEVEL BASS TREBLE

C G

10V 50mA

CLASS 2 WIRING

L SPEAKER

Side View Side ViewFront View

Screws (2

)

Right Speaker

Wallplate

DISPLAY

Wall Wall

Wallplate

Right Speaker

Tighten the two set screws (3) on the bottom of the right speaker assembly to the bottom rail of the wallplate.

3. Route the supplied power cable from the power supply in the left speaker enclosure to the power input connector of the

amplier in the right speaker enclosure.

INPUTS

POWER

MAX

12V

0.7A

OUTPUT

REMOTE

LRLEVEL BASSTREBLE

10V 50mA

CLASS2 WIRING

LSPEAKER

POWER

12V

0.7A MAX

Left Speaker Module

Power Supply

Right Speaker Module

Ampliﬁer

DC Power

Input

DC Power Cord

Captive Screw

Connectors

Tie

Wraps

DC Power

Outputs

SB 33 A Series • Setup Guide (Continued)

ATTENTION:

• Always use a power supply supplied by or specied by Extron. Use of an unauthorized power supply voids all

regulatory compliance certication and may cause damage to the supply and the end product.

• L’utilisation d’une source d’alimentation non autorisée annule toute certication de conformité réglementaire, et peut

endommager la source d’alimentation et l’unité.

• The installation shall be in accordance with the applicable provisions of National Electrical Code ANSI/NFPA 70,

article 725 and the Canadian Electrical Code part1, section 16.

• Cette installation doit toujours être conforme aux dispositions applicables du Code américain de l’électricité

(National Electrical Code) ANSI/NFPA 70, article 725, et du Code canadien de l’électricité, partie 1, section 16.

• The length of the exposed wires in the stripping process is critical. The ideal length is 3/16 inches (5 mm). Any

longer and the exposed wires may touch, causing a short circuit between them. Any shorter and the wires can be

easily pulled out even if tightly fastened by the captive screws.

• La longueur des câbles exposés est primordiale lorsque l’on entreprend de les dénuder. La longueur idéale est de

5 mm (3/16 inches). S’ils sont trop longs, les câbles exposés pourraient se toucher et provoquer un court-circuit.

S’ils sont trop courts, ils peuvent être tirés facilement, même s’ils sont correctement serrés par les borniers à vis.

NOTE: Do not tin the wires. Tinned wire does not hold its shape and can become loose over time.

4. Route the supplied speaker cable from the left speaker module to the left speaker output of the amplifier (2), as shown

below.

INPUTS

OUTPUT

LEVEL BASS TREBLE

10V 5

CLASS 2 WIRING

L SPEAKER

INPUTS

WER

MAX

LRLEVEL

Right Speaker Ampliﬁer

Side View

Front View

Ampliﬁer

Audio Input

Connectors

Audio

Cable

Speaker Cable Left Speaker Cable

Output

Display

Speaker Cable

Power Cable

5. Hook the top clasp edge of the center bracket over the top rail (1) of the wallplate and slide it to center of the display.

POWER

12V

0.7AMAX

INP

Screws (2)

Wallplate

Center Bracket

Side View

Wall

Tighten the two set screws (2) on the bottom of the center bracket to the bottom rail of the wallplate.

Attaching Power and Audio Sources to the SB 33 A

The SB 33 A has a power supply for the amplier housed in the left speaker enclosure. The power supply has an AC power input

connector (A) and a DC power output connector (B) that routes power to the amplier. See the illustration below.

Left Speaker/Power Supply

(Side View)

AABB

This section describes how the power and audio sources are attached to the SB 33 A, as shown in the following steps.

NOTE: Speaker and DC power cables must be routed before attaching the center bracket to the wallplate. See the previous

section.

Ampliﬁer Module (inside Right Speaker module)

Power Cord

Front View

DC Power Cable

Power Supply

Left Speaker Module Wires

Audio Input Cable

Figure 1. Speaker and DC power cable routing

1. Wiring access points for the power and speaker cables to the SB 33 A are shown below.

Top Cable Access Points Bottom Cable Access Point Back Cable Access Points

Wallplate

Access Points

SB 33 A Series • Setup Guide (Continued)

Cables can be be secured with zip ties to cable tie off points located on the center bracket, as shown below.

Front View

Cable Tie-off Point

Zip Tie

2. Route the audio cable from the display to the audio input connectors of the power amplier (1) in the right speaker

assembly. See the cable access points illustration in step 1.

INPUTS

WER

MAX

LRLEVEL

Right Speaker Ampliﬁer

Side View

Front View

Ampliﬁer

Audio Input

Connectors

Audio

Cable

Speaker Cable

Display

Speaker Cable

Power Cable

3. Connect the power cord to the power supply in the left speaker assembly (1), as shown below.

Level, Bass,

Treble

Potentiometers

INPUTS

OUTPUT

LEVEL BASS TREBLE

10V 5

CLASS 2 WIRING

L SPEAKER

Ampliﬁer Module (inside Right Speaker module)

Power Cord

Front View

DC Power Cable

Power Supply

Left Speaker Module Wires

Audio Input Cable

4. Set the level, bass, and treble potentiometers shown above (2) appropriately.

NOTE: If a web camera or PTZ camera is to be mounted to the center bracket, see Mounting a Web Camera or

Mounting a PTZ camera with optional PTZ camera shelf section before proceeding to the next step.

Attaching the Center Section Cover

1. Slide the center section cover over the center section and attach the two cover screws to the center bracket standoffs being

careful not to overtighten the screws.

POWER

12V

0.7AMAX

INP

Screws (2)

Grille

Center Section Cover

Center Bracket

2. Attach the grille to the center section cover. Six magnets hold the grille in place. See the illustration above.

NOTES:

• Two grille hooks are included to facilitate grill removal while avoiding damage to the grille. It is best to insert the

hook along the outer edge of the grille.

• If the optional blank grille is being installed, see Attaching the optional blank grille on page 12.

Mounting a Web Camera

If mounting a PTZ camera, please go to the Mounting a PTZ Camera with optional PTZ camera shelf section.

The SB 33 A speaker can accommodate a camera mounted to the center bracket. A small webcam can be mounted behind the

center cover, and a larger PTZ camera can be mounted in front of the center cover.

A webcam can be installed using the included webcam shelf.

1. Install the webcam shelf by attaching it to the center bracket using two screws going through the two vertical slots on the

shelf and into two mounting holes in the bracket. There are two pairs of available holes in the bracket. The shelf height can

be adjusted by positioning the screws in the shelf slots (1).

2. For cameras that require more overhead clearance, the shelf can be inverted to accommodate taller webcams. See Option 2

of step 2 on the following page.

POWER

12V

0.7AMAX

INP

Screws (2)

Web Camera

Mount

Center

Bracket

SB 33 A Series • Setup Guide (Continued)

3. A screw is inserted in the bottom slot of the shelf (2) to secure the webcam.

POWER

12V

0.7AMAX

INP

Screw

Webcam

Option 2

4. See Attaching the Center Section Cover on page 9 to continue the installation.

Mounting a PTZ camera with optional PTZ camera shelf

A larger PTZ camera that takes up more space can be installed in front of the front cover using the optional PTZ camera

shelf. Follow the steps below.

ATTENTION:

• The PTZ camera cannot exceed 4 lbs. (1.81 kg).

• La caméra PTZ ne peut peser plus de 1,81 kg (4 lb).

POWER

12V

0.7AMAX

INP

PTZ Camera

1. Install the PTZ camera shelf by attaching it to the center bracket using two screws and lock washers going through verti-

cal slots on the shelf and into two mounting holes in the bracket. There are two pairs of available holes in the bracket.

The shelf height can be adjusted by positioning the screws in the shelf slots.

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