Celestion FTR18-4080FD 18" Weather-Resistant Subwoofer, Cast Aluminium Chassis, 2000W Ferrite Magnet LF Driver
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Glass loaded paper cone with weather-resistant impregnation
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Optimised double suspension
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Airflow vented magnet assembly for dynamic heat dispersion
Specifications
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Nominal diameter: 457mm / 18in
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Power rating: 1000W
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Continuous power rating: 2000W
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Rated impedance: 8Ω
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Sensitivity: 97dB
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Frequency range: 30-2500Hz
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Chassis type: Cast aluminium
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Magnet type: Ferrite
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Magnet weight: 3.1kg / 110oz
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Voice coil diameter: 100mm / 4in
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Voice coil material: Round copper
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Former material: Glass fibre
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Cone material: Glass loaded paper (weather-resistant)
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Surround material: Cloth-sealed
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Suspension: Double
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Gap height (Hg): 10mm / 0.39in
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VC winding height (Hvc): 22mm / 0.87in
Parameters
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Sd: 1134.12cm2 / 175.79ft3
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Fs: 25.20Hz
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Mms: 177.81g / 6.27oz
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Qms: 4.750
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Qes: 0.304
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Qts: 0.286
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Re: 5.62Ω
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Vas: 408.72l / 14.43ft3
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BI: 22.81Tm
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Cms: 0.23mm/N
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Rms: 5.92kg/s
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Le (at 1kHz): 1.50mH
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Xmax: 8.5mm / 0.34in
Mounting Information
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Overall diameter: 452mm / 17.8in
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Overall depth: 205mm / 8.1in
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Cut-out diameter: 416mm / 16.38in
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Mounting hole dimensions: 10x7mm / 0.39x0.27in
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Number of mounting holes: 8
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Mounting hole PCD: 429-440mm / 16.89-17.32in
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Unit weight: 9.8kg / 21.6lb
Packed Dimensions & Weight
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Single pack size W x D x H: 500mm x 500mm x 240mm / 19.7in x 19.7in x 9.4in
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Single pack weight: 11.5kg / 25.3lb
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Multi pack qty: 24
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Multi pack size W x D x H: 1210mm x 1050mm x 980mm / 47.6in x 41.3in x 35.4in
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Multi pack weight: 265kg / 580lb
