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IMPO

RTAN

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Go to www

.extron.com f

or the complete 

user guide

, installation instructions,

 and 

specifications bef

ore connecting the 

product to the po

wer sour

ce.

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 amplifier 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

Summary of Contents for SB 33 A 46-55

Page 1: ...encing 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 m...

Page 2: ...sonry 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 w...

Page 3: ...e 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 V L L R LEVEL BASS TREBLE R C G 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 speake...

Page 4: ... 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 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 moun...

Page 5: ...ker 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 V L L R LEVEL BASS TREBLE R C G 10V 50mA CLASS 2 WIRING L SPEAKER INPUTS PO WE R MA X 12V 0 7A OU TPUT REMO TE V L L R LEV EL BA SS TR EB LE R C G 10V 50m A CLA SS 2 WIR ING ...

Page 6: ...s 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 bor...

Page 7: ...dio 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 e e Amplifier Module inside Right Speaker module Power Cord Front View DC Power Cable Power Supply Left Speaker Module Wires Audio Input Cable 1 Figure 1 Speaker and DC power cable routing 1 Wiring acce...

Page 8: ...udio Cable Speaker Cable Display Speaker Cable Power Cable 1 1 3 Connect the power cord to the power supply in the left speaker assembly 1 as shown below e e Level Bass Treble Potentiometers 2 2 INPUTS OUTPUT V LEVEL BASS TREBLE C 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...

Page 9: ...unting 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 t...

Page 10: ...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 7A MAX IN P 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 mountin...

Page 11: ...he center section cover 1 and along a center bracket cable tie off point 2 b Route the cable to the camera shelf 3 c Route the cable through the access hole at the rear of the camera shelf 4 3 If the optional blank grille is being installed see Attaching the optional blank grille on the next page 4 Slide the center section cover over the center bracket and attach the two cover screws to the center...

Page 12: ...ttach it to the shelf with the mounting screw 2 See the figure below IN P IN POWER 12V 0 7A MAX INP PTZ Camera Screw PTZ Cables 1 1 2 2 Final View Attaching the Optional Blank Grille The optional blank grille can be attached to the center section cover by following the steps below 1 If the grille is attached use the grille hooks to remove the grille NOTE Two grille hooks are included to facilitate...

Page 13: ...nput connector D RCA unbalanced stereo input connectors E 3 5 mm unbalanced stereo input jack F Level bass and treble potentiometers G Remote volume control connector H Left Speaker output receptacle to left speaker A Power LED The LED lights green when the amplifier is receiving power and active It lights amber when the unit is in standby after 25 minutes of inactivity B Amplifier power supply co...

Page 14: ...eptacles accept unbalanced line level audio signals If unused the receptacle automatically terminates to lower the noise floor Tip Sleeve RCA Connector If unused the receptacles automatically terminate to lower the noise floor E 3 5 mm unbalanced stereo input jack This input also accepts unbalanced line level audio signals through a 3 5 mm tip ring sleeve TRS stereo connector If unused the recepta...

Page 15: ...lity and related topics see the Extron Safety and Regulatory Compliance Guide on the Extron website See the Attention page 6 and Note page 6 for important information about connecting wires to captive screw connectors ATTENTION Do not short or ground the speaker outputs as this will damage the amplifier Ne pas mettre à la terre ni céer de court circuit dans les sorties de l enceinte afin d éviter ...

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