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SF 8CT SUB Subwoofer • Setup Guide

This guide provides instructions for an experienced installer to install the Extron SF 8CT SUB 
subwoofer and to make all connections. The subwoofer typically is installed above a suspended ceiling (having ceiling tiles).
Installation consists of the following operations:

• 

Installation Considerations

• 

Preparing the Installation Location

• 

Configuring the Speaker

• 

Mounting the Speaker

Installation Considerations

 

WARNING:

AVERTISSEMENT :

• 

Potential risk of severe injury

.

 Installation and service must be performed by authorized personnel only.

• 

Risque potentiel de blessure grave ou de mort. L’installation et l’entretien doivent être effectués par le personnel 
autorisé uniquement.

• 

Properly suspending equipment requires training and expertise. Improper rigging of suspended equipment can cause the speaker 
to fall, resulting in 

death

, personal injury, equipment damage, and legal liability. Installation must be carried out by fully qualified 

installers, in accordance with all required safety codes and standards at the place of installation.

• 

Il est indispensable de disposer de compétences techniques pour pouvoir suspendre l’équipement. Une manipulation incorrecte 
de l’équipement suspendu peut provoquer la chute de l’enceinte, entraînant la 

mort

, des lésions corporelles, des dégâts 

matériels, et engageant la responsabilité d’un individu. L’installation doit être effectuée par des installateurs hautement qualifiés, 
conformément à l’ensemble des codes et des normes de sécurité réglementaires sur le lieu de l’installation.

• 

The legal requirements for suspending equipment vary from country to country. Extron strongly recommends that you consult 
your local safety standards office before installing any product. Extron also recommends that you thoroughly check any laws and 
bylaws prior to installation.

• 

Les conditions juridiques relatives à la suspension d’équipements varient de pays en pays. Extron vous recommande vivement de 
consulter les standards de sécurité en vigueur dans votre pays avant d’installer un produit. Extron vous recommande également 
de vérifier minutieusement toute loi et tout règlement avant l’installation.

ATTENTION:

• 

Installation and service must be performed by authorized personnel only.

• 

L’installation et l’entretien doivent être effectués par le personnel autorisé uniquement.

• 

This unit must be repaired by personnel trained by Extron or returned to Extron for repair.

• 

Cette unité doit être réparée par un technicien formé par Extron ou renvoyée à Extron pour réparation.

• 

All wiring and electrical connections must conform to all applicable building codes and local ordinances.

• 

Installation in a plenum-rated environment requires plenum-rated cable or conduit.

• 

If using secondary support cables, the installer provides the cables.

IMPO

RTAN

T:

IMPO

RTAN

T:

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.

DANGER: 

This is the Danger style to use without bullets.  The word “

DANGER

” must be 10 

points regardless of other font size used.

•  A statement in 75 bold that “

<whatever> may result in Serious injury or death”

 must start a Danger statement.

DANGER: 

Danger cont.  The word “DANGER” must be 10 points regardless of other font size used.

•  For a bullet that is for “sub bullets,” how does this look.

DANGER: 

• 

<whatever> may result in Serious injury or death.  

This is the  

Danger bullet1 

style. The word “DANGER” must be 

10 points regardless of other font size used.
This is the  

Danger bullet1 cont 

style. The word “DANGER” must be 10 points regardless of other font size used.

•  This is the 

Danger bullet 2 

 style. Use when space is an issue and having the wrap different helps save space.  

The left indent is set at 0.25 inches. The word “DANGER” must be 10 points regardless of other font size used.
This is the 

Danger bullet 2 cont

 style.. The word “DANGER” must be 10 points regardless of other font size 

used.

 

WARNING:

 

This is a warning style. The word “WARNING” must be 10 points regardless 

of other font size used.

CAUTION:

  This is a caution sytle. The word “CAUTION” must be 10 points regardless of other font size used.

ATTENTION:  This is an Attention style. The word “ATTENTION” may be the same font size as the 
rest of the attention statement.

• 

This This is an Attention style. The word “ATTENTION” may be the same font size as the rest of the attention statement.

NOTE:

  Note style

TIP:  Tip T

ext

Tip Text, cont’d

• 

TIPS: 

 

Tips Bullet

• 

Tips_Bullet Ind_1

• 

Tips_Bullet Ind_L2

Summary of Contents for SF 8CT SUB

Page 1: ...nstallation doit tre effectu e par des installateurs hautement qualifi s conform ment l ensemble des codes et des normes de s curit r glementaires sur le lieu de l installation The legal requirements...

Page 2: ...rked in step 3b d Using the provided cutout template trace a circle around the cutout template e Cut out the circle traced on the ceiling tile f Replace the tile in the ceiling 4 Attach two V rails an...

Page 3: ...e hole to be cut in the ceiling as described below a Mark the location on the ceiling where the center of the speaker will be placed b Position the center hole of the cutout template directly over the...

Page 4: ...of up to 1 5 inches 3 81 cm in thickness For ceiling tiles thicker than 1 5 inches the locking arm inserts must be removed To remove the inserts a Using a screwdriver rotate the locking arm so that t...

Page 5: ...t using conduit Route the speaker wires through the cable clamp If using conduit Remove the cable clamp and install the conduit into the plate opening Secure the conduit to the plate with the locking...

Page 6: ...speakers is wired this way disconnecting one speaker removes power from all downstream speakers Wiring a Single Speaker 1 2 3 Figure 7 Speaker Wiring Schemes ATTENTION Do not tin the wire leads befor...

Page 7: ...r Using a cable clamp on the access plate Figure 8 Using a cable clamp Using a conduit adapter on the access plate Flexible Conduit Adapter Figure 9 Using a conduit adapter 7 Replace the access plate...

Page 8: ...figure 9 Figure 10 Clamping the speaker to the C ring Tightening the locking arms into rigid material For rigid material use the Opti TorqueTM indicator ring as a tightening guide NOTE Each of the fou...

Page 9: ...ond souple serrez les bras de verrouillage pour s curiser l enceinte en veillant cependant ce que l unit ne cause l alt ration de la surface de montage plane du plafond comme illustr ci dessous X 3 Co...

Page 10: ...entation de l amplificateur When connecting multiple speakers in 8 ohm mode be sure that the combined rated impedance does not equal a value less than the minimum rated impedance of the amplifier Lors...

Page 11: ...ust the LF Selector Switch LPF 120 Hz OFF Figure 14 Setting the LPF selector switch 7 Install the grille Position the grille so that it covers the baffle of the speaker Six small magnets secure the gr...

Page 12: ...ecure points within the solid and permanent building structure Figure 16 Connecting a secondary support line 1 With the wires out of the way insert the speaker through the bottom of the hole in the ce...

Page 13: ...driver see figure 19 ATTENTION When setting the taps for a distributed high impedance system do not tap the system above the rated power of the amplifier Lors de la mise en place des capteurs pour un...

Page 14: ...ate setting using a small screwdriver The default position is LPF enabled Disable the LPF if filtering is set on a device upstream of the speaker The LPF is fixed at 120 Hz Adjust the LF Selector Swit...

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