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.
The Control 321CT has been engineered from the ground up to deliver exceptional next-generation performance in a coaxial point source design ceiling loudspeaker.
Size | ||||
Specifications | ||||
Control 321C/CT12 Spec Sheet
updated: Apr 2019
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1,47 MB | |||
Manuals | ||||
Ceiling Speaker Accessory Guide
version B,
updated: Jan 2024
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231 KB | |||
Transformer Bypass on Control 321CT, Control 322CT, or Control 328CT
updated: Okt 2019
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59,2 KB | |||
Control 300 Series Transformer Insertion Loss Chart
updated: Okt 2019
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15,4 KB | |||
Brochures | ||||
Control 300 Brochure
updated: Apr 2019
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2,9 MB | |||
CAD Drawings | ||||
Control 300 Ceiling Speakers
updated: Okt 2019
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1,39 MB | |||
Compliances | ||||
JBL Control Series Passive Speakers DoC
updated: Des 2019
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179 KB | |||
Control 300 Series Declaration of Conformity
updated: Okt 2019
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92,7 KB | |||
Software | ||||
Distributed System Design (DSD)
version 3.7,
updated: Nov 2023
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1,07 MB | |||
Install Guides | ||||
Control 321 & 322 Installation Guide
updated: Apr 2019
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574 KB | |||
User Guides | ||||
Control 300 User Guide
updated: Apr 2019
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2,02 MB |
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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 |
Professional Series
Professional Series
For use on either 70V or 100V distributed loudspeaker lines.