JBL Control 328C 8 Coaxial Ceiling Loudspeaker with HF Compression Driver (Unit)

JBL Control 328C

Control 328C has been engineered from the ground up to deliver exceptional next-generation performance in a coaxial point source design ceiling loudspeaker.

  • Consistent 120° broadband pattern control covers an extremely large area.
  • Shaped mounting baffle provides the pattern control of a 300 mm (12 in) horn from a 200 mm (8 in) driver.
  • Components
    • 200 mm (8 in) woofer with Kevlarre inforced cone and 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 very 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.

Frequency Range (-10 dB)45 Hz – 18 kHz
Long-Term System
Power Rating
250 W (1000 W peak), 2 hrs
150 W (600 W peak), 100 hrs
Sensitivity (2.83V@ 1m)93 dB4 measured half-space
Frequency Response (±3 dB)60Hz – 16 kHz
Coverage Pattern120° conical, broadband
Directivity Factor (Q)7.0 (Avg 1k - 16kHz)
Directivity Index (DI)8.5dB (Avg 1k - 16kHz)
Maximum SPL118 dB cont ave (124 dB peak)
Crossover Network1.9 kHz, 3rd order (18 dB/oct) high-pass plus conjugate to HF, 2nd order
low-pass to LF
Nominal Impedance (321C)8 ohms
Dimensions (H x W x D)305 mm (12.0 in.) diameter round baffle x depth from back of baffle 
of 160 mm (6.3in)

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