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JBL 300 Series - page 1
C o n t r o l 3 2 1 C / C T C o n t r o l 3 2 2 C / C T C o n t r o l 3 2 8 C / C T C o n t r o l 3 1 2 C S User’ s Guide 300 Ser ies ...
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JBL 300 Series - page 2
T ABLE OF CONTENTS Product Description Product Feature Identification Wiring Instructions Control 328C/CT System Assembl y Control 321C/CT , Contr ol 322C/CT & Control 312CS System Assembl y P ainting the Grille Maintenance Accessories Contacting JBL Prof essional Specifications 3 4 5 7 8 10 10 10 10 11 JBL Prof essional Control 300 Series ...
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JBL 300 Series - page 3
3 Control 321C - A coaxial design that f eatures a 12” K evlar- reinf orced cone on the woofer coupled with JBL Prof essional’ s 2412 Compression Driver . The Contr ol 321CT offers the same driver compliment as the Control 321C b ut also includes a multi- tap transf or mer for use on 70V or 100V line distrib ution systems. Control 322C - A coax ...
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JBL 300 Series - page 4
4 JBL Prof essional Control 300 Ser ies PR ODUCT FEA TURE IDENTIFICA TION (Control 322CT Shown) T ransf or mer Compression Driver W oof er F rame Baffle Crossov er Network T uning P or t T ube EZ-Rail™ Baffle T uning P or t Crossov er Network Dust Cap W oof er T uning P or t T ube ...
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JBL 300 Series - page 5
5 JBL Prof essional Control 300 Ser ies WIRING INSTR UCTIONS Guide to Connection Pins on Low Impedance Models (Control 321C, 322C, 328C & 312CS) -- The remov able locking input connector contains 4 ter minals, as mar ked on the connector . The pin functions for the Control 328C, 328C and 322C are listed on the label located on the crossov er fr ...
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JBL 300 Series - page 6
6 JBL Prof essional Control 300 Ser ies WIRING INSTR UCTIONS 2.) Using Loop-Through T erminals (Pins 2 & 3) -- By connecting the wire pair of the subsequent speaker to pins 2 & 3, then all subsequent speakers will be disconnected when this speaker’ s connector is disconnected dur ing troubleshooting . This can be useful as a wa y to isola ...
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JBL 300 Series - page 7
CONTR OL 328C/CT SYSTEM ASSEMBL Y 7 JBL Prof essional Control 300 Ser ies Ceiling Preparation - Cut a 12.2 inch (310 mm) diameter hole in the ceiling to allow sufficient room for the loudspeaker baffle . Assembling the Control 328C/CT into the Back Can - After inser ting the Control 328C/CT into the back can, align the mouting holes without weld ...
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JBL 300 Series - page 8
8 JBL Prof essional Control 300 Ser ies CONTR OL 321C/CT , 322C/CT & 312CS SYSTEM ASSEMBL Y Assembling the Control 321C/CT , 322C/CT or 312CS into the Back Box - First, line up the EZ-Rail™ with one of the back box flanges containing a singular mounting hole . F or orientation when holding the speaker ov erhead, two (2) embossed arrows on th ...
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JBL 300 Series - page 9
CONTR OL 321C/CT , 322C/CT & 312CS SYSTEM ASSEMBL Y The backcan m ust be secured to the b uilding structure by qualified personnel in accordance with saf e installation practices . Use suspension mater ials, connection fixturing, and methods that are appropr iate f or the building structure and installation conditions. Emplo y a minimum 5:1 s ...
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JBL 300 Series - page 10
10 JBL Prof essional Control 300 Ser ies A CCESSORIES, MAINTENANCE & CONT A CTING JBL P ainting the Grille -- Control 300 Ser ies Grilles f eature a powder coated, satin finish paint (RAL 9016 - P antone equivalent 11-0602TPX) and can be painted to match any decor . This should only be done when the grilles hav e been remov ed from their louds ...
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JBL 300 Series - page 11
SPECIFICA TIONS 11 JBL Prof essional Control 300 Ser ies Control 328C/CT F requency Range (-10 dB) 1 : 45 Hz – 18 kHz F requency Response (±3 dB) 1 : 60 Hz – 16 kHz Cov erage P atter n 2 : 120º conical, broadband (Avg 1k - 16kHz) Long-T er m System Po wer Rating, IEC 3 : 250 W (1600 W peak), 2 hrs 150 W (1000 W peak), 100 hrs Sensitivity (2.8 ...
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JBL 300 Series - page 12
363816-001 8500 Balboa Boule vard Nor thridge, CA 91329 USA Visit us online at www .jblpro .com 300 Ser ies ...
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