JBL Control 328C 8" 2-Way 250W Coaxial Ceiling Speaker

JBL Control 328C 8" 2-Way 250W Coaxial Ceiling Speaker

JBL Control 328C 8" 2-Way 250W Coaxial Ceiling Speaker


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Expected availability: 7-10 business days

Product Highlights

  • Passive Design
  • 8" Woofer with Kevlar-Reinforced Cone
  • High-Frequency Compression Driver
  • 250W Program (1000W Peak) Power Capacity
  • For Power Amplifiers
  • 60 Hz to 16 kHz Frequency Response
  • Built-In Crossover Network
  • 120° Broadband Coverage
  • Removable Locking Input Connector
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Configuration: 8 Ohms, No Transformer

70V/100V, With Transformer

Special Order

8 Ohms, No Transformer

This item is noncancelable and nonreturnable.

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JBL Control 328C overview

  • 1Description

The JBL Control 328C is a passive 8" coaxial ceiling speaker designed for voice amplification and foreground music reproduction in waiting rooms, offices, retail stores, and restaurants. When driven by an 8-Ohm power amplifier (available separately), this 2-way speaker provides a long-term power capacity of 250W (1000W peak). The Control 328C is equipped with a durable 8" Kevlar-reinforced cone and a titanium-diaphragm compression driver, yielding an extended frequency response of 60 Hz to 16 kHz.

The cone and pre-attached baffle serve as a high-frequency waveguide, which results in reliable 120° broadband coverage while the built-in crossover network ensures proper frequency distribution to the speaker components. A removable locking connector with screw-down terminals ensures simple wiring for the input and loop output.

Coaxial ceiling speaker with pre-attached ported baffle
For use with 8-Ohm power amplifiers
Long-term power handling of 250W (1000W peak)
Durable 8" Kevlar-reinforced cone with 2" voice coil
Low-frequency cone and shaped mounting baffle perform as a true 12" diameter waveguide for the high frequencies
Metal throat transitions smoothly to the horn to eliminate high-frequency beaming
High-temperature voice coil
High-frequency driver features a pure titanium diaphragm for high sensitivity and long life, a diamond surround for resonance control, and FerroFluid for increased power handling
Consistent 120° coverage on a broadband basis
Built-in crossover network with 18 dB/octave high-pass filter and 12 dB/octave low-pass filter
Removable multi-pin locking connector with secure screw-down terminals allows pre-wiring of inputs for easy clip-on convenience during installation
Compatible with MTC-RG6/8 and MTC-SG6/8 grilles, and MTC-300BB8 backbox (all available separately)
In the Box
JBL Control 328C 8" 2-Way 250W Coaxial Ceiling Speaker
  • Limited 5-Year Warranty on Loudspeaker
  • Table of Contents
    • 1Description

    JBL Control 328C specs

    Active or Passive Passive
    LF Driver 8" / 20 cm Woofer with Kevlar-Reinforced Cone and 2" / 5 cm Voice Coil
    HF Driver JBL 2412H-1 Compression Driver with 1" / 2.5 cm Voice Coil
    Frequency Range 45 Hz to 18 kHz (-10 dB)
    Frequency Response 60 Hz to 16 kHz (3 dB)
    Coverage Pattern 120° Conical, Broadband
    Directivity Factor 7 (1 to 16 kHz)
    Directivity Index 8.5 dB (1 to 16 kHz)
    Power Capacity For 2 Hours: 250 W (1000 W Peak)
    For 100 Hours: 150 W (600 W Peak)
    Sensitivity Measured Half-Space: 93 dB (2.83 V at 1 m)
    Computed for Competitive Comparison: 98 dB (2.83 V at 1 m)
    Maximum SPL 118 dB Continuous Average (124 dB Peak)
    Impedance 8 Ohms
    Transformer Taps Not applicable
    Crossover Frequency: 1.9 kHz
    Low-Pass Filter: 2nd Order (12 dB/Octave)
    High-Pass Filter: 3rd Order (18 dB/Octave)
    Input Removable Locking Connector with Screw-Down Terminals
    Maximum Wire Size 12 AWG
    Shielded No
    Baffle Material: Metal
    Diameter: 12" / 30.5 cm
    Dimensions (Diam. x Depth) 12.0 x 6.3" / 30.5 x 16.0 cm from Back of Baffle
    Weight 10 lb / 4.5 kg
    Safety Rating UL 1480, UL 2043, NFPA 90, and NFPA 70 when Installed with a UL-Listed Backcan
    S7232/UL, UL 1876, IEC 60849 / EN 60849
    Packaging Info
    Package Weight 14.6 lb
    Box Dimensions (LxWxH) 15.6 x 15.4 x 12.9"

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