Extron electronics SF 3C LP, SF 3CT LP User Manual

SF 3C LP and SF 3CT LP

Full Range 3-inch SoundField Ceiling Speakers
with 4-inch Low-Profile Back Can

User Guide

Speakers

68-2224-01 Rev. A

08 16

Safety Instructions

Safety Instructions • English

WARNING: This symbol, , when used on the product, is intended to

alert the user of the presence of uninsulated dangerous voltage within
the product’s enclosure that may present a risk of electric shock.

ATTENTION: This symbol, , when used on the product, is intended

to alert the user of important operating and maintenance (servicing)
instructions in the literature provided with the equipment.

For information on safety guidelines, regulatory compliances, EMI/EMF
compatibility, accessibility, and related topics, see the Extron Safety and
Regulatory Compliance Guide, part number 68-290-01, on the Extron
website, www.extron.com.

Sicherheitsanweisungen • Deutsch

WARNUNG: Dieses Symbol auf dem Produkt soll den Benutzer

darauf aufmerksam machen, dass im Inneren des Gehäuses dieses
Produktes gefährliche Spannungen herrschen, die nicht isoliert sind und
die einen elektrischen Schlag verursachen können.

VORSICHT: Dieses Symbol auf dem Produkt soll dem Benutzer in

der im Lieferumfang enthaltenen Dokumentation besonders wichtige
Hinweise zur Bedienung und Wartung (Instandhaltung) geben.

Weitere Informationen über die Sicherheitsrichtlinien, Produkthandhabung,
EMI/EMF-Kompatibilität, Zugänglichkeit und verwandte Themen finden Sie in
den Extron-Richtlinien für Sicherheit und Handhabung (Artikelnummer
68-290-01) auf der Extron-Website, www.extron.com.

Instrucciones de seguridad • Español

ADVERTENCIA: Este símbolo, , cuando se utiliza en el producto,

avisa al usuario de la presencia de voltaje peligroso sin aislar dentro del
producto, lo que puede representar un riesgo de descarga eléctrica.

ATENCIÓN: Este símbolo, , cuando se utiliza en el producto, avisa

al usuario de la presencia de importantes instrucciones de uso y
mantenimiento recogidas en la documentación proporcionada con el
equipo.

Para obtener información sobre directrices de seguridad, cumplimiento
de normativas, compatibilidad electromagnética, accesibilidad y temas
relacionados, consulte la Guía de cumplimiento de normativas y seguridad
de Extron, referencia 68-290-01, en el sitio Web de Extron, www.extron.com.

Instructions de sécurité • Français

AVERTISSEMENT : Ce pictogramme, , lorsqu’il est utilisé sur le

produit, signale à l’utilisateur la présence à l’intérieur du boîtier du
produit d’une tension électrique dangereuse susceptible de provoquer
un choc électrique.

ATTENTION : Ce pictogramme, , lorsqu’il est utilisé sur le produit,

signale à l’utilisateur des instructions d’utilisation ou de maintenance
importantes qui se trouvent dans la documentation fournie avec le
matériel.

Pour en savoir plus sur les règles de sécurité, la conformité à la
réglementation, la compatibilité EMI/EMF, l’accessibilité, et autres sujets
connexes, lisez les informations de sécurité et de conformité Extron, réf.
68-290-01, sur le site Extron, www.extron.com.

Istruzioni di sicurezza • Italiano

AVVISO: Questo simbolo, ,quando viene utilizzato il prodotto, serve

ad avvisare l’utente della presenza di tensioni pericolose non isolate
all’interno del prodotto, che può presentare un rischio di scosse
elettriche.

ATTENTZIONE: Questo simbolo, , quando viene utilizzato il

prodotto, serve ad avvisare l’utente di importanti istruzioni di uso e
manutenzione (assistenza) nella letteratura fornita con l’apparecchiatura.

Per informazioni sulle linee guida di sicurezza, adempimenti normativi,
compatibilità EMI/EMF, accessibilità e argomenti correlati, vedere la sicurezza
di Extron e Regulatory Compliance Guide, parte numero
68-290-01, sul sito Web Extron, www.extron.com.

Instrukcje bezpieczeństwa • Polska

OSTRZEŻENIE: Ten symbol, , gdy używany na produkt, ma na celu

poinformować użytkownika o obecności izolowanego i niebezpiecznego
napięcia wewnątrz obudowy produktu, który może stanowić zagrożenie
porażenia prądem elektrycznym.

UWAGI: Ten symbol, , gdy używany na produkt, jest przeznaczony do

ostrzegania użytkownika ważne operacyjne oraz instrukcje konserwacji
(obsługi) w literaturze, wyposażone w sprzęt.

Informacji na temat wytycznych w sprawie bezpieczeństwa, regulacji
wzajemnej zgodności, zgodność EMI/EMF, dostępności i Tematy pokrewne,
zobacz Extron bezpieczeństwa i regulacyjnego zgodności przewodnik, część
numer 68-290-01, na stronie internetowej Extron, www.extron.com.

Инструкция по технике безопасности • Русский

ПРЕДУПРЕЖДЕНИЕ: Данный символ, , если указан

на продукте, предупреждает пользователя о наличии
неизолированного опасного напряжения внутри корпуса
продукта, которое может привести к поражению электрическим
током.

ВНИМАНИЕ: Данный символ, , если указан на продукте,

предупреждает пользователя о наличии важных инструкций
по эксплуатации и обслуживанию в руководстве,
прилагаемом к данному оборудованию.

Для получения информации о правилах техники безопасности,
соблюдении нормативных требований, электромагнитной
совместимости (ЭМП/ЭДС), возможности доступа и других
вопросах см. руководство по безопасности и соблюдению
нормативных требований Extron на сайте Extron: ,

www.extron.com, номер по каталогу - 68-290-01.

安全说明 • 简体中文

警告： 产品上的这个标志意在警告用户该产品机壳内有暴露的危险 电压，

有触电危险。

注意： 产品上的这个标志意在提示用户设备随附的用户手册中有

重要的操作和维护(维修）说明。

关于我们产品的安全指南、遵循的规范、EMI/EMF 的兼容性、无障碍
使用的特性等相关内容，敬请访问 Extron 网站 , www.extron.com，参见

Extron 安全规范指南，产品编号 68-290-01

。

安全記事 • 繁體中文

警告: 若產品上使用此 符號，是為了提醒使用者，產品機殼內存在著

可能會導致觸電之風險的未絕緣危險電壓。

注意 若產品上使用此符號，是為了提醒使用者，設備隨附的用戶手冊中有

重要的操作和維護（維修）説明。

有關安全性指導方針、法規遵守、EMI/EMF 相容性、存取範圍和相關主題的詳細資
訊，請瀏覽 Extron 網站：www.extron.com，然後參閱《Extron 安全性與法規
遵守手冊》，準則編號 68-290-01。

安全上のご注意

• 日本語

警告: この記 号 が製品上に表示されている場合は、筐体内に絶縁されて

いない高電圧が流れ、感電の危険があることを示しています。

注意:この記号 が製品上に表示されている場合は、本機の取扱説明書

に 記 載されている重要な操作と保守(整備)の指 示についてユーザーの
注意を喚起するものです。

安全上のご注意、法規厳守、EMI/EMF適合性、その他の関連項目に
つ い て は 、エ ク スト ロ ンの ウェブ サ イト www.extron.com よ り 『 Extron Safety
and Regulatory Compliance Guide』 ( P/N 68-290-01) をご覧ください。

안전 지침 • 한국어

경고: 이 기호 가 제품에 사용될 경우, 제품의 인클로저 내에 있는

접지되지 않은 위험한 전류로 인해 사용자가 감전될 위험이 있음을
경고합니다.

주의: 이 기호 가 제품에 사용될 경우, 장비와 함께 제공된 책자에 나와

있는 주요 운영 및 유지보수(정비) 지침을 경고합니다.

안전 가이드라인, 규제 준수, EMI/EMF 호환성, 접근성, 그리고 관련 항목에
대한 자세한 내용은 Extron 웹 사이트(www.extron.com)의 Extron 안전 및
규제 준수 안내서, 68-290-01 조항을 참조하십시오.

Copyright

© 2016 Extron Electronics. All rights reserved.

Trademarks

All trademarks mentioned in this guide are the properties of their respective owners.

The following registered trademarks®, registered service marks(SM), and trademarks(TM) are the property of RGBSystems,
Inc. or Extron Electronics (see the current list of trademarks on the Terms of Use page at www.extron.com):

Registered Trademarks

AVTrac, Cable Cubby, ControlScript, CrossPoint, eBUS, EDID Manager, EDID Minder, Flat Field, GlobalViewer, Global Configurator, Global Scripter,
Hideaway, Inline, IP Intercom, IP Link, Key Minder, LinkLicense, LockIt, MediaLink, MediaPort, NetPA, PlenumVault, PoleVault, PowerCage, Pure3,
Quantum, SoundField, SpeedMount, SpeedSwitch, System INTEGRATOR, TeamWork, TouchLink, V-Lock, VersaTools, VoiceLift, VN-Matrix,
WallVault, WindoWall, XTP, and XTP Systems

(SM)

Registered Service Mark

: S3 Service Support Solutions

Trademarks

AP, AFL - Accu-RATE Frame Lock, ADSP - Advanced Digital Sync Processing, Auto-Image, CableCover, CDRS - Class D Ripple Suppression,
DDSP - Digital Display Sync Processing, DMI - Dynamic Motion Interpolation, Driver Configurator, DSP Configurator, DSVP - Digital Sync Validation
Processing, eLink, EQIP, FastBite, FOX, FOXBOX, IP Intercom HelpDesk, LinkLicense, MAAP, MicroDigital, Opti-Torque, ProDSP, QS-FPC ­QuickSwitch Front Panel Controller, Room Agent, Scope-Trigger, ShareLink, SIS - Simple Instruction Set, Skew-Free, SpeedNav, Triple-Action
Switching, True4K, Vector™ 4K, WebShare, XTRA, ZipCaddy, and ZipClip

(®)

(™)

FCC Class A Notice

This equipment has been tested and found to comply with the limits for a Class A digital device,
pursuant to part15 of the FCC rules. The ClassA limits provide reasonable protection against harmful
interference when the equipment is operated in a commercial environment. This equipment generates,
uses, and can radiate radio frequency energy and, if not installed and used in accordance with the
instruction manual, may cause harmful interference to radio communications. Operation of this
equipment in a residential area is likely to cause interference. This interference must be corrected at
the expense of the user.

NOTE: For more information on safety guidelines, regulatory compliances, EMI/EMF compatibility,

accessibility, and related topics, see the “Extron Safety and Regulatory Compliance

Guide” on the Extron website.

Conventions Used in this Guide

Notifications

The following notifications are used in this guide:

WARNING: Potential risk of severe injury or death.
AVERTISSEMENT : Risque potentiel de blessure grave ou de mort.

ATTENTION:

• Risk of property damage.

• Risque de dommages matériels.

Specifications Availability

Product specifications are available on the Extron website, www.extron.com.

Extron Glossary of Terms

A glossary of terms is available at http://www.extron.com/technology/glossary.aspx.

NOTE: A note draws attention to important information.

Contents

Introduction............................................................ 1

About this Guide ................................................. 1

Overview ............................................................ 1

Features ............................................................. 1

Application Example ........................................... 2

Installation .............................................................. 3

Installation Considerations .................................. 3

Installation Configurations ................................... 3

Installing the Speaker System in a Suspended

Ceiling — Single Installer ................................... 4

Installing the Speaker System in a Suspended

Ceiling — Division of Labor .............................. 12

Installing the Speaker System in a Hard

Ceiling ............................................................. 23

Troubleshooting: Signal Test Points ................... 31

Testing Source Signal (all configurations) ....... 31

Testing the Impedance (Loop-Through

Configuration Only) ...................................... 31

SF 3C LP and SF 3CT LP User Guide • Contents v

SF 3C LP and SF 3CT LP User Guide • Contents vi

Introduction

This section gives an overview of the Extron SF 3C LP and SF 3CT LP Full Range 3-inch
SoundField Ceiling Speakers with 4-inch Low-Profile Back Can. It also provides a list of
system features and an application diagram. Topics include:

• About this Guide

• Overview

• Features

• Application Example

About this Guide

This guide describes the SF 3C LP and SF 3CT LP speakers and provides instructions for
installing all components of the system in different types of ceilings.

NOTE: Observe all applicable building codes and local ordinances when installing the

speaker.

Overview

Features

The Extron SoundField SF 3CT LP and SF 3C LP are full-range ceiling speakers with 4-inch
(10.2 cm) low profile composite back cans for use in plenum rated ceiling environments with
limited vertical clearance above the ceiling.

The SF 3C LP supports 8 ohm operation. The SF 3CT LP supports 70 V, 100 V, and 8 ohm
direct operation. The SF 3CT LP has a 6-position rotary switch for selecting the various
power taps for 70V, 100V, or 8 ohms. The two models are physically similar, with slight
variations in weight and front baffle appearance.

The SF 3CT LP and SF 3C LP meet stringent UL 2043 requirements for smoke and heat
release in plenum air spaces. The 3-inch (7.6 cm) full-range driver features a frequency
range of 65 Hz to 20 kHz and a conical dispersion of 165 degrees. The SF 3CT LP and
SF 3C LP feature a thin-edged bezel and a magnetically attached grille.

• 4-inch (10.2 cm) deep low profile composite back can for plenum environments

• 3-inch (7.6 cm) full-range driver with a tuned port

• Frequency range: 65 Hz to 20 kHz

• 165-degree conical dispersion

• 16 watts continuous pink noise, 32 watts continuous program

SF 3C LP and SF 3CT LP User Guide • Introduction 1

• SF 3CT LP — 8 ohm direct or 70/100 volt operation on a 6 position, behind-the-grille

selector

• 8 ohm direct

• 70 volt: 16, 8, 4, 2, and 1 watt selectable

• 100 volt: 16, 8, 4, and 2 watt selectable

• SF 3C LP — 8 ohm direct

• White grille and bezel are paintable to match the installation environment

• Separable back can and baffle supports single-trade and division-of-labor installations

• Modular V-rail and folding C-ring kit

• Cable/conduit access plate can be oriented for side or top connections

• Opti-Torque indicator rings prevent overtightening of locking arm screws

• Three locking arms for quick ceiling installation

• Thin bezel and magnetically attached grille

• UL 1480 and UL 2043 plenum-rated enclosure

• Dimensional and weight savings, reduces overall storage and shipping costs

Application Example

The illustration below is one example of configuring a system using the SF 3CT LP.

Extron
SF 3CT LP

Ceiling Speakers

Audio

Extron
XPA 1002-70V

Power Amplier

100-240V X.XA MAX, 50-60Hz

XPA 1002-70V

LIMITER/PROTECT

SIGNAL

HPF

ATTENUATION

2

1

21

10

10

12

12

8

6

14

14

18

4
2

26

0

∞

∞

REMOTE

70V OUTPUTSINPUTS

1

80 Hz

8

6
4
2

0

OFF

1

2

2

G

STANDBY

CLASS 2 WIRING

Audio

Extron
IN1604 HD

Four Input Scaler

100-240V ~ --A MAX

50-60 Hz

HDMI HDMI3

21CONFIGURABLE

INPUT REMOTE

OUT

LR

IN

L

12

HDMI4

AUDIOOUTPUT

3214+V

TALLY OUT

HDMI

R

CONTACT IN

1234G

RS-232

Tx Rx G

RS-232

HDMI

HDMI

COM 1

COM 2

DIGITAL I/O

IPCP PRO 250

G

Tx Rx RTSCTS

G

Tx Rx

POWER
12V

--A MAX

1 2 3 4 G

RELAYS

eBUS

VOL

1 2 C

VCG

+V+S-SG

PWR OUT = 6W

IR/S

S G

LAN

Extron
IPCP Pro 250

IP Link Pro
Control Processor

eBUS

Workstation PC

HDMI

Blu-ray Player

Projector

DISPLAY

ON

OFF

VOLUME

Extron

PC

EBP 106 D

VIDEO

eBUS Button Panel
– Decora Wallplate

Figure 1. Typical SF 3CT LP Application

SF 3C LP and SF 3CT LP User Guide • Introduction 2

Installation

This section provides instructions for installing the SF 3C LP and SF 3CT LP speakers.
Topics include:

• Installation Considerations

• Installation Configurations

• Installing the Speaker System in a Suspended Ceiling — Single Installer

• Installing the Speaker System in a Suspended Ceiling — Division of Labor

• Installing the Speaker System in a Hard Ceiling

• Troubleshooting: Signal Test Points

Installation Considerations

WARNING: Potential risk of severe injury. Installation and service must be performed

by authorized personnel only.

AVERTISSEMENT : Risque potentiel de blessure grave ou de mort. L’installation

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

• 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.

Installation Configurations

The SF 3C LP and SF 3CT LP can be configured for the following ceiling types:

• Suspended ceiling: The following sections describe speaker installation procedures for

suspended ceilings.

• Hard ceiling: For hard ceiling installations, see Installing the Speaker System in a

Hard Ceiling on page 23.

SF 3C LP and SF 3CT LP User Guide • Installation 3

Installing the Speaker System in a Suspended Ceiling — Single Installer

SF 3C LP and SF 3CT LP User Guide • Installation

If a single installer is installing the speaker system, follow this procedure for the entire system:

1. Disconnect power — Power down all attached devices before proceeding.

2. Verify the space where the system will be installed — Ensure that there is sufficient

clearance above the ceiling tile for the unit to be installed.

3. Cut a hole for the speaker — Use the provided cutout template to outline the hole to

be cut in the ceiling tile as described below.

a. Remove the ceiling tile.

b. To find the center of the tile, use a tape measure to measure the space between

two opposite corners, and mark the half-way point.

c. Position the center hole of the cutout template directly over the center of the tile

that you marked in step3b.

d. Using the provided cutout template, trace a circle around the

cutout template.

e. Cut out the circle traced in the ceiling tile.

f. Replace the tile in the ceiling.

4. Attach two V-rails and one C-ring across the tile above the hole

cut in step 3, as described below.

a. Assemble two V-rail half sections so that they become one single piece:

i. Fit the tab of one end into the slot of the other end.

ii. Open the V-rail until it locks together.

iii. Repeat this procedure for the other V-rail.

Figure 2. Assembling the V-rails

4

b. Remove a ceiling tile adjacent to the tile with the hole.

V

SF 3C LP and SF 3CT LP User Guide • Installation

c. Place both assembled V-rails on the cut ceiling tile and position them equally on

either side of the hole. The ends of the V-rails go over the ceiling grid.

d. Position the C-ring assembly on the two V-rails so that the C-ring is centered over

the hole, as shown below.

C-ring

-rail

Figure 3. Positioning the C-ring assembly on the V-rails

e. Secure the C-ring to the V-rails using two screws.

5. Route the speaker wires through the ceiling tile hole.

6. Configure the cable conduit access plate and captive screw connector.

a. If two conduits are being used, knock out the alternate knockout.

i. Place the head of the screw driver on the notch of the knockout.

ii. Tap the back of the screwdriver until the knockout pops out.

b. Loosen the two side cable conduit access plate screws and remove the plate

before wiring the speaker.

Remove the
cable conduit
access plate.

Figure 4. Removing the Cable Conduit Access Plate

Alternate
Knockout

5

c. Configure the cable conduit access plate:

2

SF 3C LP and SF 3CT LP User Guide • Installation

When not using conduit: Route the speaker wires through the cable clamp.

When using conduit: Remove the cable clamp and install the conduit into the

plate opening. Secure the conduit to the plate with the locking nut and pull the
speaker wires from the conduit.

NOTE: The plate has an alternate hole available by removing the knockout. See

step 6a on the previous page to remove the knockout.

d. Strip 0.2 inches (5 mm) from the wire ends.

e. Attach the speaker wires to the captive screw connector depending on the

configuration, as illustrated by the following three methods.

Wiring Multiple Speakers Using Loop-through
When a chain of speakers is wired this way, disconnecting
one speaker removes power from all downstream speakers.

1

(Red)

(Black)

(Black)

(Red)

(Red)

(Black)

Power Amplier

Wiring Multiple Speakers in Parallel

When a chain of speakers is wired this way, disconnecting
one speaker does not remove power from the remaining
speakers in the chain.

Power Amplier

Wiring a Single Speaker

3

Power Amplier

(Red)

(Black)

(Red)

(Black)

+

–

–

IN

LOOP

IN

Speaker 1

+

–

–

IN

LOOP

IN

Speaker 1

+

–

–

IN

LOOP

IN

Speaker 1

+

LOOP

LOOP

+

+

–

–

IN

LOOP

IN

Speaker 2

(Red)

(Black)

+

LOOP

–

–

LOOP

IN

(Red)

(Black)

+

+

IN

LOOP

Speaker 2

Wire Gauge Table

Number of Wires per
Connection Point

Maximum
Wire Gauge

1 12 AWG

+

LOOP

2 16 AWG

4 18 AWG

Figure 5. Attaching the Speaker Wires to the Connector

ATTENTION:

• Do not tin the wire leads before installing into the connector. Tinned wires

are not as secure in the connector and could be pulled out.

• Ne pas étamer les conducteurs avant de les insérer dans le connecteur.

Les câbles étamés ne sont pas aussi bien fixés dans le connecteur et
pourraient être retirés.

6

f. Insert the captive screw plug into the four-pole receptacle of the speaker.

Using a cable clamp on the cable conduit access plate:

Figure 6. Using a Cable Clamp

Using a conduit adapter on the cable conduit access plate:

Flexible Conduit Adapter

Figure 7. Using a Conduit Adapter

SF 3C LP and SF 3CT LP User Guide • Installation 7

g. Replace the cable conduit access plate and tighten the two retaining screws.

OR

8W

16W

100 V

4W

2W

8Ω

8Ω

SF 3C LP and SF 3CT LP User Guide • Installation

NOTE: The cable conduit access plate can be positioned in one of two ways

depending on installer preference. Flip the plate to the desired position with
the wire openings either on the side or on the top of the speaker enclosure
before tightening the screws.

As examples:

• The side access wire opening can be useful in low profile installations.

• The top access wire opening can be more convenient to use.

h. Tighten the cable clamp if it was used.

7. Mounting the speaker.

a.

Insert the speaker through the bottom of the hole in the ceiling tile that was cut in

step 3

on page 4 with the wires out of the way.

b. Clamp the speaker to the C-ring by using a Phillips screwdriver to tighten the three

locking arms to the C-ring.

100 V

16W

8W

4W

2W

8Ω

8Ω

16W

4W2W1W

8W

70 V

Figure 8. Clamping the Speaker to the C-ring

8

Each of the three locking arm screws use an Opti-Torque indicator ring that snaps

8W

16W

100 V

4W

2W

8Ω

8Ω

SF 3C LP and SF 3CT LP User Guide • Installation

and separates from its plastic ring when the screw is tightened to the correct
torque. The indicator ring falls down the screwdriver shaft. When this occurs, stop
tightening the screw to avoid overtightening the locking arms to the C-ring.

100 V

16W

8W

4W

2W

8Ω

8Ω

16W

4W2W1W

8W

70 V

Figure 9. Stop Tightening when the Opti-Torque Indictor Ring Falls

ATTENTION:

• To avoid damaging the speaker, do not overtighten the three screws.

• Pour éviter d’endommager l’enceinte, ne serrez pas trop les trois vis.

8. If required, attach a secondary support line.

a. Connect a secondary support line to the support loop on the back of the speaker

enclosure, as shown here.

Anchor end to suitable
secure points within the
solid and permanent
building structure.

Figure 10. Connecting a Secondary Support Line

ATTENTION:

• Do not allow any slack in the secondary support line.

• Ne laissez pas de mou au niveau du filin de sécurité secondaire.

9

b. Replace the adjacent ceiling tile that was removed in step 4b on page 5.

SF 3C LP and SF 3CT LP User Guide • Installation

9. For the SF 3CT LP only, set the rotary tap selector switch to the appropriate setting

using a small screwdriver.

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 système distribué (haute

impédance), n’exploitez pas le système au delà du niveau d’alimentation 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 de la connexion de plusieurs enceintes en mode 8ohm, assurez vous que

le niveau d’impédance combinée ne soit pas équivalent à une valeur inférieure
à l’impédance minimum de l’amplificateur.

100 V

16W

8W

4W

2W

8Ω

8
Ω

1

4W2W1W8

6W

W

70 V

100 V

16W

2W
4W
8W

16W

8Ω

8W
4W
2W

8Ω

1W

Adjust the Tap Selector

Figure 11. Setting the Rotary Tap Selector Switch

70 V

10

10. Install the grille. Position the grille so that it covers the baffle of the speaker. Six small

SF 3C LP and SF 3CT LP User Guide • Installation

magnets secure the grille in place.

100 V

16W

8W

4W

2W

8

8

Ω

Ω

1

4W2W1W8

6W

W

70 V

Speaker Grille

Figure 12. Installing the grille

NOTE: Specific test points can be used to troubleshoot speaker system problems.

Should problems be encountered, please see Troubleshooting: Signal Test Points
on page 31.

11

Installing the Speaker System in a Suspended Ceiling —

8W

16W

100 V

4W

2W

8Ω

8Ω

SF 3C LP and SF 3CT LP User Guide • Installation

Division of Labor

In a division of labor installation, low-voltage contractors first install the speaker back can
enclosure (construction rough-in phase). After the back can has been installed, the second
phase of the installation process can begin by installing the speaker assembly to the back
can.

Use the following procedure:

1. Using a flat head screwdriver — Completely loosen the three screws holding the

speaker assembly to the back can enclosure from the speaker, as shown below.

NOTE: The screws are not removeable. They loosen completely, but do not pull out.

V

70

16W

4W2W1W

8W

8Ω

8Ω

8W

4W

2W

16W

100 V

Figure 13. Unscrewing the Speaker Assembly from the Back Can

12

2. Separate the speaker assembly from the back can — Carefully separate the

SF 3C LP and SF 3CT LP User Guide • Installation

speaker assembly from the back can, as shown below.

NOTE: Disconnect the speaker wires from the speaker assembly before completely

separating the speaker assembly from the back can.

Figure 14. Separating the Speaker Assembly from the Back Can

3. Repeat steps 1 and 2 for each speaker in the system and distribute the

components to the appropriate installers.

4. Disconnect power — Power down all attached devices before proceeding.

5. Verify the space where the system will be installed — Ensure that there is sufficient

clearance above the ceiling tile for the unit to be installed.

6. Cut a hole for the speaker — Use the provided cutout template to outline the hole to

be cut in the ceiling tile as described below.

a. Remove the ceiling tile.

b. To find the center of the tile, use a tape measure to measure the space between

two opposite corners, and mark the half-way point.

c. Position the center hole of the cutout template directly over the center of the tile

that you marked in step6b.

d. Using the provided cutout template, trace a circle around the cutout template.

e. Cut out the circle traced in the ceiling tile.

f. Replace the tile in the ceiling.

13

7. Attach two V-rails and one C-ring across the tile above the hole cut in step 6 on the

previous page, as described below.

a. Assemble two V-rail half sections so that they become one single piece:

i. Fit the tab of one end into the slot of the other end.

ii. Open the V-rail until it locks together.

iii. Repeat this procedure for the other V-rail.

Figure 15. Assembling the V-rails

b. Remove a ceiling tile adjacent to the tile with the hole.

c. Place both assembled V-rails on the cut ceiling tile and position them equally on

either side of the hole. The ends of the V-rails go over the ceiling grid.

d. Place the C-ring assembly and position it on the two V-rails so that the C-ring is

centered over the hole.

SF 3C LP and SF 3CT LP User Guide • Installation 14

C-ring

V

-rail

SF 3C LP and SF 3CT LP User Guide • Installation

Figure 16. Positioning the C-ring Assembly on the V-rails

e. Secure the C-ring to the V-rails using two screws.

8. Route the speaker wires through the ceiling tile hole.

9. Configure the cable conduit access plate and captive screw connector of the

back can enclosure.

a. If two conduits are being used, knock out the alternate knockout.

i. Place the head of the screw driver on the notch of the knockout.

ii. Tap the back of the screwdriver until the knockout pops out.

b. Loosen the two side cable conduit access plate screws and remove the plate

before wiring the speaker.

Remove the
cable conduit
access plate.

Figure 17. Removing the Cable Conduit Access Plate

c. Configure the cable conduit access plate:

When not using conduit: Route the speaker wires through the cable clamp.

Alternate

15

When using conduit: Remove the cable clamp and install the conduit into the

2

SF 3C LP and SF 3CT LP User Guide • Installation

plate opening. Secure the conduit to the plate with the locking nut and pull the
speaker wires from the conduit.

NOTE: The plate has an alternate hole available by removing the knockout. See

step 9a on the previous page to remove the knockout.

d. Strip 0.2 inches (5 mm) from the wire ends.

e. Attach the speaker wires to the captive screw connector depending on the

configuration, as illustrated by the following three methods.

Wiring Multiple Speakers Using Loop-through
When a chain of speakers is wired this way, disconnecting
one speaker removes power from all downstream speakers.

1

(Red)

(Black)

(Black)

(Red)

(Red)

(Black)

Power Amplier

Wiring Multiple Speakers in Parallel

When a chain of speakers is wired this way, disconnecting
one speaker does not remove power from the remaining
speakers in the chain.

Power Amplier

Wiring a Single Speaker

3

Power Amplier

(Red)

(Black)

(Red)

(Black)

+

–

–

IN

LOOP

IN

Speaker 1

+

–

–

IN

LOOP

IN

Speaker 1

+

–

–

IN

LOOP

IN

Speaker 1

+

LOOP

LOOP

+

+

–

–

IN

LOOP

IN

Speaker 2

(Red)

(Black)

+

LOOP

–

–

LOOP

IN

(Red)

(Black)

+

+

IN

LOOP

Speaker 2

Wire Gauge Table

Number of Wires per
Connection Point

Maximum
Wire Gauge

1 12 AWG

+

LOOP

2 16 AWG

4 18 AWG

Figure 18. Attaching the Speaker Wires to the Connector

ATTENTION:

• Do not tin the wire leads before installing into the connector. Tinned wires

are not as secure in the connector and could be pulled out.

• Ne pas étamer les conducteurs avant de les insérer dans le connecteur.

Les câbles étamés ne sont pas aussi bien fixés dans le connecteur et
pourraient être retirés.

16

10. Insert the captive screw plug into the four-pole receptacle of the speaker.

SF 3C LP and SF 3CT LP User Guide • Installation

Using a cable clamp on the cable conduit access plate:

Figure 19. Using a Cable Clamp

Using a conduit adapter on the cable conduit access plate:

Flexible Conduit Adapter

Figure 20. Using a Conduit Adapter

11. Replace the cable conduit access plate and tighten the two retaining screws.

17

NOTE: The cable conduit access plate can be positioned in one of two ways

SF 3C LP and SF 3CT LP User Guide • Installation

depending on installer preference. Flip the plate to the desired position with the
wire openings either on the side or on the top of the speaker enclosure before
tightening the screws.

As examples:

• The side access wire opening can be useful in low profile installations.

• The top access wire opening can be more convenient to use.

OR

12. Tighten the cable clamp if it was used.

13. Mount the speaker back can enclosure.

a.

Insert the speaker through the bottom of the hole in the ceiling tile that was cut in

step 6

on page 13 with the wires out of the way.

Figure 21. Inserting the Speaker Back Can

b. Clamp the speaker back can to the C-ring by using a Phillips screwdriver to tighten

the three locking arms to the C-ring.

18

Figure 22. Tightening the Locking Arms

SF 3C LP and SF 3CT LP User Guide • Installation

Each of the three locking arm screws use an Opti-Torque indicator ring that snaps
and separates from its plastic ring when the screw is tightened to the correct
torque. The indicator ring falls down the screwdriver shaft. When this occurs, stop
tightening the screw to avoid overtightening the locking arms to the C-ring.

Figure 23. Stop Tightening when the Opti-Torque Indicator Ring Falls

ATTENTION:

• To avoid damaging the speaker, do not overtighten the three screws.

• Pour éviter d’endommager l’enceinte, ne serrez pas trop les trois vis.

19

14. If required, attach a secondary support line.

SF 3C LP and SF 3CT LP User Guide • Installation

a. Connect a secondary support line to the support loop on the back of the speaker

enclosure, as shown here.

Anchor end to suitable
secure points within the
solid and permanent
building structure.

Figure 24. Connecting a Secondary Support Line

ATTENTION:

• Do not allow any slack in the secondary support line.

• Ne laissez pas de mou au niveau du filin de sécurité secondaire.

Replace the adjacent ceiling tile that was removed in step 7b on page 14.

b.

15. Repeat steps 4 through 14 for each speaker being installed.

16. Attach the speaker assembly to the back can enclosure.

a. Connect the speaker wires from the back can enclosure to the speaker assembly.

100 V

16W

8W

4W

2W

8Ω

8Ω

4W2W1W

8W

16W

70 V

Figure 25. Connecting Speaker Wires to the Speaker Assembly

20

b. Rotate the speaker assembly so that the white arrows on the back can enclosure

8W

16W

100 V

4W

2W

8Ω

8Ω

SF 3C LP and SF 3CT LP User Guide • Installation

and the speaker assembly are aligned with each other and insert the speaker into
the back can.

c. Using a flat head screwdriver, tighten the three screws that attach the speaker

assembly to the back can.

100 V

16W

8W

4W

2W

8Ω

8
Ω

4W2W1W

8W

16W

70 V

Figure 26. Screwing the Speaker Assembly to the Back Can

ATTENTION:

• To avoid damaging the speaker, do not overtighten the three screws.

• Pour éviter d’endommager l’enceinte, ne serrez pas trop les trois vis.

17. For the SF 3CT LP, set the rotary tap selector switch to the appropriate setting using a

small screwdriver.

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 système distribué (haute

impédance), n’exploitez pas le système au delà du niveau d’alimentation 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 de la connexion de plusieurs enceintes en mode 8ohm, assurez vous que

le niveau d’impédance combinée ne soit pas équivalent à une valeur inférieure
à l’impédance minimum de l’amplificateur.

21

100 V

SF 3C LP and SF 3CT LP User Guide • Installation

16W

8W

4W

2W

8Ω

8
Ω

1

4W2W1W8

6W

W

70 V

100 V

16W

2W
4W
8W

16W

8Ω

8W
4W
2W
1W

70 V

8Ω

Adjust the Tap Selector

Figure 27. Setting the Rotary Tap Selector Switch

18. Install the grille. Position the grille so that it covers the baffle of the speaker. Six small

magnets secure the grille in place.

100 V

16W

8W

4W

2W

8

8

Ω

Ω

1

4W2W1W8

6W

W

70 V

Figure 28. Installing the Grille

NOTE: Specific test points can be used to troubleshoot speaker system problems.

Should problems be encountered, please see Troubleshooting: Signal Test Points
on page 31.

Speaker Grille

22

Installing the Speaker System in a Hard Ceiling

SF 3C LP and SF 3CT LP User Guide • Installation

If you are installing the SF 3C LP or SF 3CT LP in a hard ceiling (having no ceiling tiles), with
the ceiling structure in place, follow the steps below:

1. Disconnect power — Power down all attached devices before proceeding.

2. Cut a hole for the speaker — Use the provided cutout template to outline the 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 center mark.

c. Trace a circle around the cutout template.

d. Cut out the traced circle.

3. Fold one C-ring assembly in half and insert it through the hole in the ceiling.

4. Unfold the C-ring and center it over the hole with the flat side down.

Figure 29. Installing the C-ring

5. Route the speaker wires through the ceiling hole.

6. Configure the cable conduit access plate and captive screw connector.

a. If two conduits are being used, knock out the alternate knockout.

i. Place the head of the screw driver on the notch of the knockout.

ii. Tap the back of the screwdriver until the knockout pops out.

23

b. Loosen the two side cable conduit access plate screws and remove the plate

SF 3C LP and SF 3CT LP User Guide • Installation

before wiring the speaker.

Remove the
cable conduit
access plate.

Alternate

Figure 30. Removing the Cable Conduit Access Plate

c. Configure the cable conduit access plate:

When not using conduit: Route the speaker wires through the cable clamp.

When using conduit: Remove the cable clamp and install the conduit into the

plate opening. Secure the conduit to the plate with the locking nut and pull the
speaker wires from the conduit.

NOTE: The plate has an alternate hole available by removing the knockout. See

step 6a on the previous page to remove the knockout.

d. Strip 0.2 inches (5 mm) from the wire ends.

24

e. Attach the speaker wires to the captive screw connector depending on the

SF 3C LP and SF 3CT LP User Guide • Installation

configuration, as illustrated by the following three methods.

Wiring Multiple Speakers Using Loop-through
When a chain of speakers is wired this way, disconnecting
one speaker removes power from all downstream speakers.

1

(Red)

(Black)

(Black)

(Red)

(Red)

(Black)

Power Amplier

Wiring Multiple Speakers in Parallel

When a chain of speakers is wired this way, disconnecting
one speaker does not remove power from the remaining
speakers in the chain.

2

Power Amplier

Wiring a Single Speaker

3

Power Amplier

(Red)

(Black)

(Red)

(Black)

+

–

–

IN

LOOP

IN

Speaker 1

+

–

–

IN

LOOP

IN

Speaker 1

+

–

–

IN

LOOP

IN

Speaker 1

+

LOOP

LOOP

+

+

–

–

IN

LOOP

IN

Speaker 2

(Red)

(Black)

+

LOOP

–

–

LOOP

IN

(Red)

(Black)

+

+

IN

LOOP

Speaker 2

Wire Gauge Table

Number of Wires per
Connection Point

Maximum
Wire Gauge

1 12 AWG

+

LOOP

2 16 AWG

4 18 AWG

Figure 31. Attaching the Speaker Wires to the Connector

ATTENTION:

• Do not tin the wire leads before installing into the connector. Tinned wires

are not as secure in the connector and could be pulled out.

• Ne pas étamer les conducteurs avant de les insérer dans le connecteur.

Les câbles étamés ne sont pas aussi bien fixés dans le connecteur et
pourraient être retirés.

25

f. Insert the captive screw plug into the four-pole receptacle of the speaker.

Using a cable clamp on the cable conduit access plate:

Figure 32. Using a Cable Clamp

Using a conduit adapter on the cable conduit access plate:

Flexible Conduit Adapter

Figure 33. Using a Conduit Adapter

SF 3C LP and SF 3CT LP User Guide • Installation 26

g. Replace the cable conduit access plate and tighten the two retaining screws.

SF 3C LP and SF 3CT LP User Guide • Installation

NOTE: The cable conduit access plate can be positioned in one of two ways

depending on installer preference. Flip the plate to the desired position with
the wire openings either on the side or on the top of the speaker enclosure
before tightening the screws.

As examples:

• The side access wire opening can be useful in low profile installations.

• The top access wire opening can be more convenient to use.

OR

h. Tighten the cable clamp if it was used.

7. If required, attach a secondary support line. Connect a secondary support line to

the support loop on the back of the speaker enclosure, as shown here.

Anchor end to suitable
secure points within the
solid and permanent
building structure.

Figure 34. Connecting a Secondary Support Line

ATTENTION:

• Do not allow any slack in the secondary support line.

• Ne laissez pas de mou au niveau du filin de sécurité secondaire.

27

8. Mounting the speaker.

8W

16W

100 V

4W

2W

8Ω

8Ω

8W

16W

100 V

4W

2W

8Ω

8Ω

SF 3C LP and SF 3CT LP User Guide • Installation

a.

Insert the speaker through the bottom of the hole in the ceiling that was cut in

step 2

on page 23 with the wires out of the way.

b. Clamp the speaker to the C-ring by using a Phillips screwdriver to tighten the three

locking arms to the C-ring.

100 V

16W

8W

4W

2W

8Ω

8Ω

16W

4W2W1W

8W

70 V

Figure 35. Clamping the Speaker to the C-ring

Each of the three locking arm screws use an Opti-Torque indicator ring that snaps
and separates from its plastic ring when the screw is tightened to the correct
torque. The indicator ring falls down the screwdriver shaft. When this occurs, stop
tightening the screw to avoid overtightening the locking arms to the C-ring.

100 V

16W

8W

4W

2W

8Ω

8Ω

16W

4W2W1W

8W

70 V

Figure 36. Stop Tightening when the Opti-Torque Indicator Ring Falls

ATTENTION:

• To avoid damaging the speaker, do not overtighten the three screws.

• Pour éviter d’endommager l’enceinte, ne serrez pas trop les trois vis.

28

9. For the SF 3CT LP, set the rotary tap selector switch to the appropriate setting using a

SF 3C LP and SF 3CT LP User Guide • Installation

small screwdriver.

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 système distribué (haute

impédance), n’exploitez pas le système au delà du niveau d’alimentation 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 de la connexion de plusieurs enceintes en mode 8ohm, assurez vous que

le niveau d’impédance combinée ne soit pas équivalent à une valeur inférieure
à l’impédance minimum de l’amplificateur.

100 V

16W

8W

4W

2W

8Ω

8
Ω

1

4W2W1W8

6W

W

70 V

2W

16W

4W
8W

8Ω

8Ω

100 V

Adjust the Tap Selector

Figure 37. Setting the Rotary Tap Selector Switch

16W
8W
4W
2W
1W

70 V

29

11. Installing the grille. Position the grille so that it covers the baffle of the speaker. Six

SF 3C LP and SF 3CT LP User Guide • Installation

small magnets secure the grille in place.

100 V

16W

8W

4W

2W

8

8

Ω

Ω

1

4W2W1W8

6W

W

70 V

Speaker Grille

Figure 38. Installing the Grille

NOTE: Specific test points can be used to troubleshoot speaker system problems.

Should problems be encountered, please see Troubleshooting: Signal Test Points
on the next page.

30

Troubleshooting: Signal Test Points

Test Points

SF 3C LP and SF 3CT LP User Guide • Installation

Specific test points can be used to troubleshoot speaker system problems.

Testing Source Signal (All Configurations)

The source signal can be tested by connecting to the inner + (IN) and – (IN) terminals of the
captive screw connector.

Red Wire (+) from Amplifier

Amplifier

Black Wire (-) from Amplifier

Figure 39. Signal Test Points — Parallel Configuration

Testing the Impedance (Loop-Through Configuration Only)

The impedance of the speakers downstream of the one being tested can be measured while
the system is on by connecting to the outer (LOOP) terminals of the captive screw connector,
as shown below.

Red Wire (+) from Amplifier

Amplifier

Black Wire (-) from Amplifier

Test Points

Figure 40. Impedance Test Points — Loop-through Configuration

To next speaker(s)

31

Extron Warranty

Extron Electronics warrants this product against defects in materials and workmanship for a period of five years
from the date of purchase. In the event of malfunction during the warranty period attributable directly to faulty
workmanship and/or materials, Extron Electronics will, at its option, repair or replace said products or components,
to whatever extent it shall deem necessary to restore said product to proper operating condition, provided that it is
returned within the warranty period, with proof of purchase and description of malfunction to:

USA, Canada, South America,
and Central America:

Extron Electronics
1230 South Lewis Street
Anaheim, CA 92805
U.S.A.

Europe and Africa:

Extron Europe
Hanzeboulevard 10
3825 PH Amersfoort
The Netherlands

Japan:

Extron Electronics, Japan
Kyodo Building, 16 Ichibancho
Chiyoda-ku, Tokyo 102-0082
Japan

China:

Extron China
686 Ronghua Road
Songjiang District
Shanghai 201611
China

Asia:

Extron Asia Pte Ltd
135 Joo Seng Road, #04-01
PM Industrial Bldg.
Singapore 368363

Middle East:

Extron Middle East
Dubai Airport Free Zone
F13, PO Box 293666
United Arab Emirates, Dubai

Singapore

This Limited Warranty does not apply if the fault has been caused by misuse, improper handling care, electrical
or mechanical abuse, abnormal operating conditions, or if modifications were made to the product that were not
authorized by Extron.

NOTE: If a product is defective, please call Extron and ask for an Application Engineer to receive an RA (Return

Authorization) number. This will begin the repair process.

USA: 714.491.1500 or 800.633.9876 Europe: 31.33.453.4040
Asia: 65.6383.4400 Japan: 81.3.3511.7655

Units must be returned insured, with shipping charges prepaid. If not insured, you assume the risk of loss or damage
during shipment. Returned units must include the serial number and a description of the problem, as well as the
name of the person to contact in case there are any questions.

Extron Electronics makes no further warranties either expressed or implied with respect to the product and its quality,
performance, merchantability, or fitness for any particular use. In no event will Extron Electronics be liable for direct,
indirect, or consequential damages resulting from any defect in this product even if Extron Electronics has been
advised of such damage.

Please note that laws vary from state to state and country to country, and that some provisions of this warranty may
not apply to you.

Extron Headquarters

+1.800.633.9876 (Inside USA/Canada Only)

Extron USA - West Extron USA - East
+1.714.491.1500 +1.919.850.1000
+1.714.491.1517 FAX [phone] FAX

Extron Europe

+800.3987.6673
(Inside Europe Only)

+31.33.453.4040
+31.33.453.4050 FAX

© 2016 Extron Electronics All rights reserved. www.extron.com

Extron Asia

+65.6383.4400
+65.6383.4664 FAX

Extron Japan

+81.3.3511.7655
+81.3.3511.7656 FAX

Extron China

+86.21.3760.1568
+86.21.3760.1566 FAX

Extron Middle East

+971.4.299.1800
+971.4.299.1880 FAX

Extron Australia

+61.8.8351.2188
+61.8.8351.2511 FAX

Extron India

1800.3070.3777
(Inside India Only)

+91.80.3055.3777
+91.80.3055.3737 FAX