Overview
Two-Way 8-Inch Coaxial Ceiling Loudspeaker
Control 18C/T-BK is a full-range ceiling speaker consisting of a 200 mm (8.0 inch) high tech cone driver and a 25 mm soft-dome liquid cooled tweeter mounted in a vented, paintable baffle made of UV resistant UL94-V0 and UL94-5HB material, with a pre-attached blind-mount backcan for quick and easy installation. The speaker is designed to provide excellent sound quality for a wide variety of medium to high volume applications such as music cafes, business music systems, retail stores, music/paging systems, airports, reception/waiting rooms, lounges, courtrooms, convention centers, hotels, educational facilities, and more.
Features
- 200 mm (8.0 in) high output driver with polypropylene cone and butyl rubber surround
- 25 mm (1.0 in) soft-dome liquid-cooled tweeter
- Blind-mount backcan for quick and easy installation
- Dual conduit/cable clamps
- Combined 70V/100V and low impedance direct operation
•90 Watts at 8Ω nominal setting
•60W multi-tap at 70V/100V - 58 Hz – 20 kHz bandwidth with 90° coverage
- High 92 dB sensitivity for high maximum SPL
- White or black (-BK)
Specs
| Frequency Range (-10 dB)1 | 58 Hz – 20 kHz | |
| Frequency Response (±3 dB)1 | 80 Hz – 16 kHz | |
| Power Capacity (at low-Z) 2 | 180 Watts Continuous Program Power | |
| Maxium Input Voltage | 31.8 V RMS (2hrs), 63.6 V peak | |
| Nominal Sensitivity3 | 92 dB | |
| Nominal Coverage Angle3 | 90° conical coverage | |
| Directivity Factor (Q) 3 | 6.0 | |
| Directivity Index (DI) 3 | 7.8 dB | |
| Rated Maximum SPL | 112 dB @ 1 m (3.3 ft) average, 118 dB peak | |
| Nominal Impedance | 8 ohms (in direct/bypass 8Ω setting) | |
| Transformer Taps | 60 W, 30 W, 15 W @ 70V or 100V (plus 7.5 W @ 70V only) | |
| Recommended Protective High-Pass4 | 45 Hz high-pass (24 dB/oct) for 8ohm operation, 60 Hz for 60 W tap, 50 Hz for 30 W, 15 W & 7.5 W tap setting | |
| Crossover Network | 12 dB/oct (2nd order) low-pass to LF driver, 12 dB/oct (2nd order) high-pass to HF driver | |
| LF Driver | 200 mm (8.0 inch) with polypropylene cone, butyl rubber surround, anodized aluminum voice coil former, high temperature voice coil | |
| HF Driver | 25 mm (1.0 in), highly-damped treated-silk dome, Kapton™ voice coil, liquid cooling, wide dispersion waveguide | |
| Input Connector | Removable locking 4-pin connector with screw-down terminals. Max wire size 12 AWG (2.5 mm2) | |
| Connector Wiring | Pin 1 = + In; Pin 2 = - In; Pin 3 = + Loop Thru; Pin 4 = - Loop Thru | |
| Strain Reliefs | Strain relief for two cables or two flex conduits via coupled clamping mechanism | |
| Materials | ABS baffle with UL94-V0 and UL94-5VB flame class fire rating; Zinc-plated steel backcan | |
| Safety Agency | UL1480, UL2043, NFPA90 & NFPA70; S7232/UL Listed, Suitable for use in air handling spaces, Signaling Speaker; Transformer UL registered per UL1876; ROHS, C-tick N108, CE compliant; Baffle meets UL94-V0 and UL94-5VB flammability rating; In accordance with IEC60849/EN60849 systems | |
| Dimensions | 307 mm diameter x 274 mm depth from back of baffle (12.1 in diameter x 10.8 in depth) | |
| Ceiling Cutout Size | Circular cutout with 282 mm (11.1 in) diameter (cardboard cutout template included) | |
| Ceiling Thickness Range | Up to 38 mm (1.5 in) with stock dog-ears. MTC-TCD thick-ceiling dog-ears available for up to 60 mm (2.4 in) ceiling thicknesses | |
| Safety Seismic Attachment | One point, top surface | |
| Net Weight | 6.4 kg (14.1 lbs, one speaker) | |
| Shipping Weight | 17.7 kg (39.0 lbs, pair in master carton) | |
| Included Accessories | C-ring support backing plate, 2 tile support rails (for 2 ft or 600 mm tile spans; optional MTC-48TR extension available for larger 4 ft or 1200 mm tile spans), cutout template, paint shield, removable locking multi-pin connector, grille with safety tether. | |
| Optional Accessories | MTC-47NC new construction bracket; MTC-47MR mud-ring construction bracket; MTC-TCD thick-ceiling dog-ears for ceiling thicknesses up to 60 mm (2.4 in, ordering one set = 24 dogears for 6 speakers); MTC-48TR tile rail for 1200 mm (4 ft) tile spans |
1 Half-space (flush mounted in ceiling)
2 Continuous Pink Noise Rating is IEC-shaped pink noise with a 6 dB crest factor for 100 hours continuously. Continuous Program Power is a conservative expression of the system’s ability to handle normal speech and music program material, and is defined as 3 dB above the Continuous Pink Noise Rating.
3 Half-space (in ceiling) average 1 kHz to 16 kHz.
4 For protection against driving below resonant frequency and to keep transformer out of saturation.
JBL continually engages in research related to product improvement. Changes introduced into existing products without notice are an expression of that philosophy.
2 Continuous Pink Noise Rating is IEC-shaped pink noise with a 6 dB crest factor for 100 hours continuously. Continuous Program Power is a conservative expression of the system’s ability to handle normal speech and music program material, and is defined as 3 dB above the Continuous Pink Noise Rating.
3 Half-space (in ceiling) average 1 kHz to 16 kHz.
4 For protection against driving below resonant frequency and to keep transformer out of saturation.
JBL continually engages in research related to product improvement. Changes introduced into existing products without notice are an expression of that philosophy.
