JBL Professional Control 321CT

Större bilder

12 in. Coaxial Ceiling Loudspeaker with HF Compression Driver

The Control 321CT has been engineered from the ground up to deliver exceptional next-generation performance in a coaxial point source design ceiling loudspeaker.

Funktioner

Consistent 90° broadband pattern control.
Components
• 300 mm (12 in) woofer with Kevlar-reinforcedcone with 50 mm (2 in) voice-coil.
• 25 mm (1 exit) compression driver.
Extraordinary clarity for speech and vocals with extended frequency response for music.
250 Watt power handling with high sensitivity provides high SPL capability.
Advanced high-slope crossover network for constant coverage and smooth, natural midrange.
Clean, contemporary grille and optional backbox available.

Nedladdningar

Specifications

	Storlek	Uppladdat
Control 321C/CT12 Spec Sheet uppdaterad: apr 2019	1,47 MB	apr 2019

Manuals

	Storlek	Uppladdat
Transformer Bypass on Control 321CT, Control 322CT, or Control 328CT uppdaterad: okt 2019	59,2 KB	okt 2019
Control 300 Series Transformer Insertion Loss Chart uppdaterad: okt 2019	15,4 KB	okt 2019

Brochures

	Version	Språk	Storlek	Uppladdat
Control Contractor Brochure (2025) version A, uppdaterad: mar 2026	A		23 MB	mar 2026
Control 300 Brochure uppdaterad: apr 2019			2,9 MB	apr 2019
Control Contractor Brochure (2026) uppdaterad: mar 2026			21 MB	mar 2026

CAD Drawings

	Storlek	Uppladdat
Control 300 Ceiling Speakers uppdaterad: okt 2019	1,39 MB	okt 2019

Compliances

	Storlek	Uppladdat
JBL Control Series Passive Speakers DoC uppdaterad: dec 2019	179 KB	dec 2019
Control 300 Series Declaration of Conformity uppdaterad: okt 2019	92,7 KB	okt 2019

Software

	Version	Storlek	Uppladdat
Distributed System Design (DSD) version 3.9, uppdaterad: nov 2025	3.9	612 KB	nov 2025

EASE Files

	Storlek	Uppladdat
Control 300 Series GLL Files uppdaterad: maj 2024	1,08 MB	maj 2024

User Guides

	Storlek	Uppladdat
Control 300 User Guide uppdaterad: apr 2019	2,02 MB	apr 2019

Accessories

	Version	Storlek	Uppladdat
Ceiling Speaker Accessory Guide version 2026-04, uppdaterad: maj 2026	2026-04	570 KB	maj 2026

Install Guides

	Storlek	Uppladdat
Control 321 & 322 Installation Guide uppdaterad: apr 2019	574 KB	apr 2019

Om någon av länkarna ovan resulterar i konstiga tecken i din webbläsare, högerklicka på filen för att spara den på din dator.

Reservdelar och service

Specifikationer

Frequency Range (-10dB)	34 Hz – 18 kHz
Power Rating	IEC Long-Term System Power Rating: 250 W continuous pink noise (1000 W peak), 2 hrs 200 W continuous pink noise (800 W peak), 100 hrs
Transformer Taps	68W, 34W, 17W, (& 8.5W @ 70V)
Frequency Response (±3 dB)	47 Hz – 16 kHz
Coverage Angle	90° conical, constant directivity
Directivity Factor (Q)	8.7 (1k - 16kHz)
Directivity Index (DI)	9.4 dB (1k - 16kHz)
Sensitivity	94 dB (1 kHz - 16 kHz)
Crossover Network	1.8 kHz, 3rd order (18 dB/oct) high-pass plus conjugate to HF, 2nd order low-pass to LF
Dimensions (H x W x D)	366 x 366 mm (14.4 x 14.4 in) square baffle x depth from back of baffle of 240 mm (9.5 in)
Maximum SPL (1m)	118 dB (top 70V/100V tap)
Input Connectors	Screw locking barrier strip for bare wire
Drivers	LF Driver: 300 mm (12 in) HF Driver: compression driver, 25 mm (1 inch) coil
Color	White
Safety Agency	Suitable for use in air handling spaces per UL1480, UL2043, NFPA90 & NFPA 70 when installed with UL listed backcan such as JBL MTC-300BB12. S7232/UL Listed, Signaling Speaker. Transformer UL registered per UL1876. In accordance with IEC60849/EN60849.
Backcan	formed steel (wood-lined; accessory)
Baffle/Rim	Metal, driver pre-mounted to baffle, ported.
Ceiling Cutout Size	378 x 378 mm (14.9 x 14.9 in) (for MTC-300BB12 backcan)
Included Accessories	Ported baffle pre-attached, transformer on 321CT.
Optional Accessories	MTC-300SG12 Grille, square contoured, white. MTC-300BB12 Backbox, 80 liters (3 cubic feet) MTC-300T150 Transformer, 150 W for use with 321C.
Plenum Usage	Yes, with accessory backcan

Tillbehör

MTC-300BB12 | 3 Cubic Ft. Backbox for Control 300 Series 12 in. Drivers

Större bilder

3 Cubic Ft. Backbox for Control 300 Series 12 in. Drivers

Professional Series

Extra-thick 16 gauge metal construction.
Lined with 12 mm (½ inch) thick MDF to eliminate resonances and to provide extra bass response.
Knockouts on top and all four sides.
Dual mounting system for baffle.
Mounting platform for an optional high-power 70V/100V transformer.

Dokumentation

MTC-300BB12 Spec Sheet [2,54 MB]
Accessing the Conduit Knockouts [116 KB]
Control 300 Ceiling Speaker Backboxes / Backcans [1,1 MB]
Control 300 Ceiling Speakers [1,39 MB]
JBL Brackets [152 KB]
Brackets Declaration of Conformity [141 KB]

MTC-300SG12 | Square Grille for Control 300 Series 12 in. Drivers

Större bilder

Square Grille for Control 300 Series 12 in. Drivers

Professional Series

Rugged 19 gauge metal construction for enduring reliability.
Sculpted design for an elegant appearance and perfect for any decor or architectural setting.
Zinc underplating provides a rust and scratch resistant surface for years of maintenance free wear.
Powder coat final finish minimizes scratching and can easily be repainted to match any room color.