• JBL Control 328CT Ceiling Speaker with HF Compression Driver
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JBL Control 328CT 8-Inch Ceiling Speaker

JBL Control 328CT 8-Inch Ceiling Speaker

SoundPro Item: 46668 | Part Number: CONTROL 328CT

$440.00
$540.00 $440.00
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MSRP: $540.00 | MAP: $440.00

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  • 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
  • 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
  • Transformer Taps:
    • 70V: 68W, 34W, 17W, 8.5W
    • 100V: 68W, 34W, 17W
  • Components
    • 200 mm (8 in) woofer with Kevlarreinforced cone and 50 mm (2 in) voice-coil
    • 25 mm (1" exit) compression driver
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Control 328CT has been engineered from the ground up to deliver exceptional next-generation performance in a coaxial point source design ceiling loudspeaker. The combination of the low frequency cone and the shaped mounting baffle performs as a true 12 inch (300 mm) diameter waveguide for the high frequencies. A unique metal throat transitions seemlessly to the horn to eliminate high frequency beaming which is common among this category of speaker. The result is a coaxial speaker with wide, extremely consistent 120° coverage on a broadband basis.

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Specifications

Dimensions
Dimensions (H X W X D)
305 mm (12.0 in.) diameter round baffle x depth from back of baffle of 218 mm (8.6 in)
Ceiling Cutout Size
310 mm (12.2 in) diameter (for MTC-300BB8 backcan)
Audio
Power Rating
See transformer taps
Transformer Taps
68W, 34W, 17W, (& 8.5W @ 70V)
Coverage Angle
120° conical, constant directivity
Impedance
8 ohms
Sensitivity
93 dB (1 kHz - 16 kHz)
Maximum SPL (1m)
118 dB (top 70V/100V tap)
Connectivity
Crossover Network
1.9 kHz, 3rd order (18 dB/oct) high-pass plus conjugate
Input Connectors
Screw locking barrier strip for bare wire
Construction
Color
White
General
Frequency Range (-10dB)
45 Hz – 18 kHz
Frequency Response (±3 dB)
60Hz – 16 kHz
Directivity Factor (Q)
7.0 (Avg 1k - 16kHz)
Directivity Index (DI)
8.5dB (Avg 1k - 16kHz)
LF Driver
200 mm (8 in)
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-300BB8. S7232/UL Listed, Signaling Speaker. Transformer UL registered per UL1876. In accordance with IEC60849/EN60849.
Backcan
formed steel (wood-lined; accessory)
Baffle/Rim
Metal, round, driver pre-mounted to baffle, ported.
Drivers
HF Driver
compression driver, 25 mm (1 inch) coil

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