Control 321CT

12 in. Coaxial Ceiling Loudspeaker with HF Compression Driver

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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.

Features

  • 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.

Downloads

  Version Language Size Uploaded
Specifications
Control 321C/CT12 Spec Sheet
updated: Apr 29, 2019
    1.47 MB Apr 29, 2019
Manuals
Transformer Bypass on Control 321CT, Control 322CT, or Control 328CT
updated: Oct 18, 2019
    59.2 KB Oct 18, 2019
Control 300 Series Transformer Insertion Loss Chart
updated: Oct 18, 2019
    15.4 KB Oct 18, 2019
Ceiling Speaker Accessory Guide
updated: Oct 18, 2019
    127 KB Oct 18, 2019
Brochures
Full Line 2015 Catalog
updated: Jan 11, 2020
    11.7 MB Jan 11, 2020
Commercial Sound Full Line 2015 Catalog
updated: Oct 21, 2019
    2.02 MB Oct 21, 2019
Control 300 Brochure
updated: Apr 29, 2019
    2.9 MB Apr 29, 2019
CAD Drawings
Control 300 Ceiling Speakers
updated: Oct 18, 2019
    1.39 MB Oct 18, 2019
Bim Objects
BIM (Revit) Files
updated: Oct 03, 2019
    12.4 MB Oct 03, 2019
Compliances
Control 300 Series Declaration of Conformity
updated: Oct 18, 2019
    92.7 KB Oct 18, 2019
JBL Control Series Passive Speakers DoC
updated: Dec 17, 2019
    179 KB Dec 17, 2019
Software
Distributed System Design (DSD) v3.6.2
version 3.6.2, updated: Jan 14, 2020
3.6.2     805 KB Jan 14, 2020
Install Guides
Control 321 & 322 Installation Guide
updated: Apr 29, 2019
    574 KB Apr 29, 2019

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Specifications

Frequency Range (-10 dB) 34 Hz – 18 kHz
Power Rating 200 W (600 W peak), 100 hrs
Taps 70V: 68W, 34W, 17W, 8.5W100V: 68W, 34W, 17W
Frequency Response (±3 dB) 47 Hz – 16 kHz
Coverage Pattern 90° conical, broadband (Avg 1k - 16kHz)
Directivity Factor (Q) 8.7 (1k - 16kHz)
Directivity Index (DI) 9.4 dB (1k - 16kHz)
Sensitivity (2.83V@ 1m) 94 dB measured half-space99 dB computed for competitive comparison
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)

Support/FAQs

Control 321CT

12 in. Coaxial Ceiling Loudspeaker with HF Compression Driver