JBL Professional Control 321C

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12 in. Coaxial Ceiling Loudspeaker with HF Compression Driver

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

特点

Consistent 90° broadband pattern control.
Components
• 300 mm (12 in) woofer with Kevlar-reinforced cone 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.

下载

	Version	Language	Size	Uploaded
Specifications
Control 321C/CT12 Spec Sheet updated: 4月29日			1.5 MB	4月29日
Manuals
Ceiling Speaker Accessory Guide updated: 10月18日			126.9 KB	10月18日
Compatible Third-Party Backboxes for Control 300 Series Speakers updated: 10月18日			127.7 KB	10月18日
Brochures
Control 300 Brochure updated: 4月29日			2.9 MB	4月29日
CAD Drawings
Control 300 Ceiling Speakers updated: 10月18日			1.4 MB	10月18日
Compliances
Control 300 Series Declaration of Conformity updated: 10月18日			92.7 KB	10月18日
JBL Control Series Passive Speakers DoC updated: 12月17日			179.3 KB	12月17日
Software
Distributed System Design (DSD) v3.6.2 version 3.6.2, updated: 9月23日	3.6.2		804.8 KB	9月23日
Install Guides
Control 321 & 322 Installation Guide updated: 4月29日			574.0 KB	4月29日
Ease Data
Ease SPK/DLL Files - Full JBL Pro Line updated: 3月15日			21.0 MB	3月15日

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Parts & Service

性能

频率范围 (-10dB)	34 Hz – 18 kHz
额定功率	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
灵敏度	94 dB (1 kHz - 16 kHz)
Frequency Response (±3 dB)	47 Hz – 16 kHz
覆盖角度	90° conical, constant directivity
Directivity Factor (Q)	8.7 (1k - 16kHz)
Directivity Index (DI)	9.4 dB (1k - 16kHz)
Crossover Network	1.8 kHz, 3rd order (18 dB/oct) high-pass plus conjugate to HF, 2nd order low-pass to LF
阻抗	5.6 ohms
尺寸（高 x 宽 x 厚）	366 x 366 mm (14.4 x 14.4 in) square baffle x depth from back of baffle of 223 mm (8.8 in)
Maximum SPL (1m)	118 dB (124 dB peak)
输入接口	Screw locking barrier strip for bare wire
Drivers	LF Driver: 300 mm (12 in) HF Driver: compression driver, 25 mm (1 inch) coil
颜色	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)
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

accessories

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

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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.

Documentation

MTC-300BB12 Spec Sheet [2.5 MB]
Accessing the Conduit Knockouts [115.6 KB]
Control 300 Ceiling Speaker Backboxes / Backcans [1.1 MB]
Control 300 Ceiling Speakers [1.4 MB]
JBL Brackets [151.9 KB]
Brackets Declaration of Conformity [141.4 KB]

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

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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.