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 3 0 0 s e r i e s.
Table of contents product description product feature identification wiring instructions control 328c/ct system assembly control 321c/ct, control 322c/ct & control 312cs system assembly painting the grille maintenance accessories contacting jbl professional specifications 3 4 5 7 8 10 10 10 10 11 jb...
3 control 321c - a coaxial design that features a 12” kevlar- reinforced cone on the woofer coupled with jbl professional’s 2412 compression driver. The control 321ct offers the same driver compliment as the control 321c but also includes a multi- tap transformer for use on 70v or 100v line distribu...
4 jbl professional control 300 series product feature identification (control 322ct shown) transformer compression driver woofer frame baffle crossover network tuning port tube ez-rail™ baffle tuning port crossover network dust cap woofer tuning port tube.
5 jbl professional control 300 series wiring instructions guide to connection pins on low impedance models (control 321c, 322c, 328c & 312cs) -- the removable locking input connector contains 4 terminals, as marked on the connector. The pin functions for the control 328c, 328c and 322c are listed on...
6 jbl professional control 300 series wiring instructions 2.) using loop-through terminals (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 during troubleshooting . Thi...
Control 328c/ct system assembly 7 jbl professional control 300 series 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 inserting the control 328c/ct into the back ...
8 jbl professional control 300 series control 321c/ct, 322c/ct & 312cs system assembly 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. For orientation when holding the speaker overh...
Control 321c/ct, 322c/ct & 312cs system assembly the backcan must be secured to the building structure by qualified personnel in accordance with safe installation practices. Use suspension materials, connection fixturing, and methods that are appropriate for the building structure and installation c...
10 jbl professional control 300 series accessories, maintenance & contacting jbl painting the grille -- control 300 series grilles feature a powder coated, satin finish paint (ral 9016 - pantone equivalent 11-0602tpx) and can be painted to match any decor. This should only be done when the grilles h...
Specifications 11 jbl professional control 300 series control 328c/ct frequency range (-10 db) 1 : 45 hz – 18 khz frequency response (±3 db) 1 : 60 hz – 16 khz coverage pattern 2 : 120º conical, broadband (avg 1k - 16khz) long-term system power rating, iec 3 : 250 w (1600 w peak), 2 hrs 150 w (1000 ...
363816-001 8500 balboa boulevard northridge, ca 91329 usa visit us online at www.Jblpro.Com 3 0 0 s e r i e s.
