JBL Professional Control 45C/T - 5.25″ Coaxial Ceiling Speaker with 120° Conical Coverage and Integrated Backcan (2 Units)
The JBL Professional Control 45C/T is a compact, two-way ceiling loudspeaker designed to deliver wide bandwidth and exceptionally consistent 120° coverage in professional applications. Its unique Radiation Boundary Integrator (RBI) waveguide controls the high frequencies via a large 210 mm horn and projects the bass through dedicated ports, achieving uniform tonal integration across the entire listening area. The integrated rear enclosure allows for quick and secure blind-mount installation , and the system is switchable for either 8 Ω or 70/100 V , reducing costs and complexity in new or retrofit projects. This item is a pack of two units .
Main features
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120° conical coverage with RBI technology for uniform level and timbre with fewer speakers per zone.
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Coaxial design : 130mm woofer (polypropylene-coated paper cone, butyl rubber surround) + 20mm soft dome tweeter with ferrofluid and neodymium motor.
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Bass extension down to 55 Hz (−10 dB) for a warm, full-bodied response from the ceiling.
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Flexible operation : low impedance 8 Ω or 70/100 V with 60/30/15 W sockets (and 7.5 W @ 70 V ).
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Professional installation : integrated back can, Ø 220 mm cut , supports ceilings up to 70 mm thick, pressure grille and fittings included.
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Safety and regulations : suitable for plenum and air handling spaces (UL1480 / UL2043), compliant with IEC/EN 60849, NFPA-70/NFPA-90A.
Product benefits
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Fewer points : Wide, controlled coverage reduces the total number of speakers without sacrificing clarity.
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Superior intelligibility : The RBI guide maintains off-axis tonal balance, improving vocals and ambient music.
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Design versatility : the same model works for 8 Ω or 70/100 V distributed systems.
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Easy assembly : integrated rear container, tile rails and C-ring included for false ceilings of 600×600/600×1200 mm and 2×4 ft.
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Reliability : long-life components (butyl rim, soft dome with ferrofluid ) and optimized design for continuous use.
Use cases
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Retail, restaurants and hotels with homogeneous background music and clear advertisements.
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Offices, meeting rooms and education where uniform coverage with minimal visual intrusion is required.
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Museums, convention centers and healthcare facilities that require full regulatory compliance and high intelligibility.
Frequently Asked Questions
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Is it suitable for plenums? Yes, it is suitable for air handling spaces and meets UL1480 and UL2043 standards .
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What size cutout do you need? Ø 220 mm ; mounting depth 239 mm .
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What accessories are included? Pressure grid, C-ring , 2 tile rails, cable gland, cutting template, paint mask and 2 removable Euroblock connectors.
Project description
JBL Control 45C/T coaxial ceiling speaker, 120° coverage; frequency response 80 Hz–17 kHz (±3 dB) / 55 Hz–20 kHz (−10 dB) ; power 75 W continuous pink noise / 150 W program; sensitivity 88 dB (2.83 V/1 m) ; max SPL 107 dB average / 113 dB peak ; impedance 8 Ω (bypass); transformer 60/30/15 W and 7.5 W @ 70 V (insertion losses approx. 0.76/0.70/0.61/0.58 dB); transducers: LF 130 mm (PP-coated cone, butyl surround, VC 25 mm with vented fiberglass resin former ) + HF 20 mm soft dome (neodymium magnet, ferrofluid , aluminum former ); Dimensions Ø 250 mm × 239 mm (depth); cut Ø 220 mm ; roof thickness up to 70 mm ; weight 3.9 kg per unit; supply: pair (2 pcs.) .
