WIRING INSTRUCTIONS, CON’T
6
JBL Professional Control Contractor 40 Series
Hookup Schemes for Subsequent Speakers
Using Loop-Through Terminals -- By connecting the wire
pair of a subsequent speakers to the “Loop Thru” on the
Control 40 Series Loudspeakers all subsequent speakers
will be disconnected when this speaker’s connector is
disconnected during troubleshooting. This can be useful
as a way to isolate problems to a section of the distributed
line while leaving the wires attached to the connector.
Hookup Schemes for Subwoofer-Satellite
Systems Using Control 40CS/T & Control 42C
Loudspeakers
The Control 40CS/T subwoofer features a built-in
crossover network designed for use with the Control
42C Ultra-Compact Satellite loudspeakers. Two or four
Control 42C satellite loudspeakers can be used with the
Control 40CS/T to create an extremely natural sounding
and powerful subwoofer-satellite system that is perfect
for applications requiring wide bandwidth and superior
sonic performance with minimal visual impact. Using four
Control 42C satellite loudspeakers with a Control 40CS/
T will offer approximately twice the area coverage than a
system using only two Control 42C satellite loudspeakers.
The Control 40CS/T and Control 42C Sub-Sat system
can be driven either via a 70V/(100V) distributed line or
in low impedance direct mode. Like the rest of the Control
40 Series, 70V/(100V) and low impedance connections
are made via the same input pins on the Control 40CS/T.
The Control 42C Satellites are then connected to satellite
output connectors located on the Control 40CS/T. In low
impedance mode, a two satellite system creates an 8Ω
load on your amplifier whereas, a four satellite system
creates a 4Ω load.
Choose whichever of the following hookup patterns best
accommodates your installation. All satellite speakers
must terminate at the Control 40CS/T subwoofer.
Connecting the Control42C Satellite to the
Control 40CS/T Subwoofer
Satellite Home Run to Subwoofer -- There are four
satellite output pins on the Control 40CS/T. If using only
two Control 42C satellites, connect each loudspeaker to
a single output pin as shown in the diagram below; one
Control 42C in “Sat 1” and the second Control 42C to
“Sat 2” ONLY. “Sat 3” and “Sat 4” connectors should not
be used.
If using four Control 42C satellites, connect each
loudspeaker to a single output connector as shown in the
diagram below, one Control 42C in “Sat 1”, the second
Control 42C to “Sat 2”, the third Control 42C to “Sat 3”, the
fourth Control 42C to “Sat 4.”
Use only two or four satellite loudspeakers as described
in the recommended configurations. Failure to do so
may result in uneven sound levels and / or damage to
your sound system.
+
IN
-
IN
+
-
Loop
Thru
Loop
Thru
+
-
+
-
From Amplifier or
Previous Speaker
To Subsequent
Speakers
Using Loop Through Terminals
Control 40CS/T
Connecting two
Control 42Cs
From Amplifier
To Control 42C
To Control 42C
+
-
Loop
Thru
Loop
Thru
+
-
IN
IN
+
-
Sat 1
+
-
Sat 2
+
-
Sat 3
+
-
Sat 4
+
+
+
-
-
-
+
-
Loop
Thru
Loop
Thru
+
-
IN
IN
+
-
Sat 1
+
-
Sat 2
+
-
Sat 3
+
-
Sat 4
+
+
+
-
-
-
+
+
-
-
Control 40CS/T
Connecting two
Control 42Cs
From Amplifier
To Control 42C
To Control 42C
+
-
Loop
Thru
Loop
Thru
+
-
IN
IN
+
-
Sat 1
+
-
Sat 2
+
-
Sat 3
+
-
Sat 4
+
+
+
-
-
-
+
-
Loop
Thru
Loop
Thru
+
-
IN
IN
+
-
Sat 1
+
-
Sat 2
+
-
Sat 3
+
-
Sat 4
+
+
+
-
-
-
+
+
-
-
(28 pages)
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