Extron electronic FF 120T User Manual

User’s Manual

FF 120T

Flat Field Speaker

1 Power down

Power down all attached devices before proceeding.

2 Suspended ceiling installation

Remove the ceiling tile where the FF 120T speaker will be
installed. Cut out a 12" section of the tile from either end
where the speaker will be installed, as shown below.

End Section

12”

2’

4’

Draw Lines

24” x 48” Ceiling Tile 24” x 24” Ceiling Tile

Cut Material

12”

2’

2’

3 Remove the terminal cover plate

Loosen the two screws (do not remove) on the top terminal
cover plate and remove the cover plate.

• If a 70 V/100 V line distribution amplifier is being used,
such as the Extron XPA 2001-70V or XPA 2001-100V, the
cover plate is no longer needed since the included CPX 120

transformer cover plate will be installed in its place.

• If the 70 V/100 V line distribution system is not being
installed, retain the cover plate and proceed to step 6b.

4 Routing cables through the

CPX 120 cover plate

The CPX 120 cover plates mount to the speakers with
the transformer side down. See the illustration below.

Flexible
Conduit

Flexible Conduit

Adapter

or or

Seismic Anchor

Ring

Top Terminal
Cover

N Installation of conduit and conduit adapters should
conform to all applicable building codes and local
ordinances.

68-1450-02 Rev. A

07 09

From Amp

Locking Ring

See the NOTES below.

To Second Speaker

Cable Clamp
Adapter (supplied)

5 Connecting wires to the CPX 120

terminal block

The transformer side of the CPX 120 cover plate has a
7-connector terminal block. Route the two wires from the
amplifier through the cover plate hole to the transformer side.
The black negative (-) wire attaches to the “COM” terminal,

and the red postitive (+) wire attaches to the desired terminal
tap.

70 V

COM NC 16 W 8 W 4 W 2 W 1 W

100 V

N Installation in a plenum-rated environment
requires a wire gauge of 12 AWG to 18 AWG.

Pull the speaker wires from the conduit if a conduit is used.
Strip 3/16" (5 mm) from the wire ends, keep the wire end
strands together by twisting them (do not tin the wires), and
secure the wires to the appropriate taps on the terminal

block’s captive screw connectors as indicated on the tap
label. Use a small flat blade screwdriver to tighten the
terminal block screws. See the note below for wiring
additional speakers.

N Route the speaker wires from the second speaker
through the cover plate hole to the transformer
side and twist the black negative (-) wires together
and twist the red positive (+) wires together before
inserting them into the terminal block. Additional
speakers can be daisy chained this way.

N Be sure to observe the 70 V or 100 V system
designation as indicated on the label.

N Wiring two speakers in parallel requires that the
maximum wire gauge not exceed 16 AWG. In a
single speaker installation the wire gauge should
not exceed 12 AWG.

When using flexible conduit, insert the conduit into the cover
plate opening using an appropriate conduit adapter and
secure the conduit to the plate as shown in the following
illustration.

1 W

2 W4 W8 W16 WCOM

2 W4 W8 W16 WCOM

70 V

COM NC 16 W 8 W 4 W 2 W 1 W

100 V

NC

NC

1 W

1

FF 120T

User’s Manual

(Red) To Speaker
(+) Terminal

NC

1 W

2 W4 W8 W16 WCOM

70 V

COM NC 16 W 8 W 4 W 2 W 1 W

100 V

When using plenum speaker wire without a conduit, insert
the wire through the cable clamp adapter (included) and
secure the adapter to the cover plate.

• If a seismic support line is being used, install the seismic

anchor ring (included) between the conduit adapter and
the CPX 120 cover plate as shown below.

• If the CPX 120 transformer cover plate is being installed,

proceed to step 6a, otherwise proceed to step 6b.

Flat Field Speaker

(Black) To Speaker
(-) Terminal

Black (-)

To Second
Speaker

Red (+)

Black (-)

From Amplifier

(70V/100V)

Red (+)

6b Connecting wires from a low

impedance amplifier to the
speaker

Route the wires from the amplifier to the speaker using the
same procedure for routing speaker wire (and conduit if

applicable) through the cover plate as described in step 3.
Strip 3/16" (5 mm) from the ends of the two speaker wire

leads (+ and -) coming from the amplifier. Keep the

wire strands together by twisting them (do not tin the wires),
and secure the wires to the speaker’s input terminals while
observing the correct polarity.

Connect the red positive (+) wire to the + speaker terminal
and connect the black negative (-) wire to the - speaker
terminal depending on whether one or two speakers are
being connected, as shown below.

Red Wire

To Amplifier

Black Wire

6a Connecting wires from the

CPX 120 to the speaker

Strip 3/16" (5 mm) from the ends of the two speaker wire
leads (+ and -) coming from the transformer. Keep the

wire strands together by twisting them (do not tin the wires),
and secure the wires to the speaker’s input terminals while
observing the correct polarity.
Connect the red positive (+) wire to the + speaker terminal
and connect the black negative (-) wire to the - speaker
terminal as shown below. Proceed to step 7.

Seismic Anchor Ring

Red Wire

To CPX 120 transformer
cover plate

Black Wire

One Speaker

Two Speakers

Red Wire

To Amplifier

To Second Speaker

To Amplifier

To Second Speaker

Black Wire

2