WIRING INSTRUCTIONS
Control 300 Series Loudspeakers include Euroblock or
Connecting the Wiring to the Euroblock
mm(about 3/16 inch), inserting the bare end of wire into the connector and screwing down the
When wiring Control 300 Series loudspeakers, always use proper electrical wiring practices in accordance with your area’s building codes and regulations.
Guide to Connection Pins on Transformer Models (Control 328CT, 321CT & 322CT)
Guide to Connection Pins on Low Impedance Models (Control 321C, 322C, 328C & 312CS)
Control 328C, 321C, | CONNECTION |
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322C & 312CS: |
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| 1 | 2 | 3 | 4 |
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| + | + | - | - |
| IN | Loop Loop IN | ||
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| Thru | Thru |
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Pins 1 & 4 are the “+” and
Hookup Schemes for Subsequent Speakers
Control 321CT & 328CT:
INPUT CONNECTION FROM | ||||
70V/100V AMPLIFIER LINE | ||||
A | B | C | D | E |
70V Com 7.5W 15W 30W 60W | ||||
100V Com 15W | 30W 60W | N/C | ||
BLACK | WHITE | BLUE | PURPLE | ORANGE |
Choose whichever of the following hookup patterns best accommodates your installation.
1.) Paralleling Input Terminals
Control 322CT:
INPUT CONNECTION FROM | ||||
70V/100V AMPLIFIER LINE | ||||
A | B | C | D | E |
70V Com 12.5W 25W 50W 100W | ||||
100V Com 25W | 50W 100W N/C | |||
BLACK | WHITE | BLUE | PURPLE | ORANGE |
able to disconnect a single loudspeaker at a time. In this hookup scheme, no wires get connected to pins 2 & 3.
Figure A: |
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Paralleling Input Terminals |
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| 1 | 2 |
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| IN | Loop Loop IN |
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| Thru | Thru |
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+ |
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For Control 328CT, 321CT and Control 322CT (transformer models), connect the negative input to the “Common” terminal and connect the positive input to the appropriate tap. For example, if the system is being driven from a 70V Distributed Line and in the case of the Control 321CT the 30W tap is desired, the positive input would be made to the input marked 30W and the negative connection would be made to the “Common” pin. The input pins correspond to the taps of the transformer indicated on the label below each connector.
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From Amplifier or Previous Speaker
+
To Subsequent
Speakers
JBL Professional Control 300 Series 5