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The JBL Control 328CT is a coaxial 250-watt point source design ceiling loudspeaker with a built-in 70V/100V transformer, featuring an 8" low frequency cone performing as a waveguide for the high frequencies. The unique metal throat provides seamless transition to the horn, eliminating any aberrant HF "beaming", and resulting in consistent 120° coverage on a broadband basis with true coaxial behavior.



  • Coaxial ceiling speaker with 1" HF compression driver and consistent 120° broadband pattern control
  • Built-in 70V/100V multi-tap transformer with 7.5W/15W/30W/60W 70V taps, 15W/30W/60W 100V taps
  • 8" Kevlar-reinforced cone with 2" voice coil, shaped mounting baffle provides pattern cintrol of 12" horn from 8" driver
  • 250-watt power handling with high sensitivity and high SPL capability
  • Advanced high-slope crossover network for constant coverage and natural midrange
  • Baffle equipped with EZRail(TM) feature, holds baffle in place while securing to backcan with screws
  • Removable multi-pin locking connector with screw-down terminals for simplified pre- or re-wiring during installation
  • Recommended for applications requiring speech and vocal clarity, extended frequency response for foreground and background music

JBL CONTROL 328CT Control 328C w/pre-attached 60W 70V/100V Multi-Tap Transformer

$507.26 Regular Price
$407.00Sale Price
  • Frequency Response 60 Hz - 16 kHz, +/-3dB
    Maximum Power Handling 600 Watts long-term, 100 hrs.
    1000 Watts pink noise, 2 hrs.
    Impedance 8 Ohms
    SPL 118dB avg., 124dB peak
    Beamwidth 120° conical, broadband (1kHz - 10kHz)
    Horizontal Beamwidth 120° conical, broadband (1kHz - 10kHz)
    Vertical Beamwidth 120° conical, broadband (1kHz - 10kHz)
    Directivity Factor: 7.0 (1kHz - 16kHz)
    Index: 8.5dB (1kHz - 16kHz)
    Construction Kevlar-reinforced cone woofer
    Titanium diaphragm compression driver with diamond surround and ferro-fluid cooling
    Ported Metal Baffle
    Magnet Saturated-gap geometry
    Voice Coil LF: 2"
    HF: 1"
    Dimensions (HxWxD) 12 x 12 x 8.6" (305 x 305 x 218mm)
    Weight 12 lb (5.4 kg)
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