Celestion CF1840JD 2400W 18" Pro Audio PA Woofer 8 Ohm Subwoofer 4" Voice Coil

Features:

• Balanced airflow venting provides enhanced cooling
• Twin demodulation rings
• Optimised double suspension

Specifications:

• Nominal diameter: 457mm / 18in
• Power rating: 1200W
• Continuous power rating: 2400W
• Rated impedance: 8O
• Sensitivity: 97dB
• Frequency range: 30-2500Hz
• Chassis type: Cast aluminium
• Magnet type: Ferrite
• Magnet weight: 3.18kg / 112oz
• Voice coil diameter: 100mm / 4in
• Voice coil material: Round copper
• Former material: Glass fibre
• Cone material: Kevlar loaded paper
• Surround material: Cloth-sealed
• Suspension: Double
• Gap height (Hg): 10mm / 0.39in
• VC winding height (Hvc): 30mm / 1.18in
• Additional impedances: 4O

Parameters:

• Sd: 1134.12cm2 / 175.79in2
• Fs: 37.00Hz
• Mms: 217.40g / 7.67oz
• Qms: 4.372
• Qes: 0.437
• Qts: 0.397
• Re: 5.29O
• Vas: 155l / 5.47ft3
• BI: 24.76Tm
• Cms: 0.09mm/N
• Rms: 11.56kg/s
• Le (at 1kHz): 1.16mH
• Xmax: 12.5mm / 0.49in

Packed Dimensions & Weight:

• Single pack size W x D x H: 500mm x 500mm x 255mm / 19.7in x 19.7in x 10in
• Single pack weight: 13kg / 28.6lb
• Multi pack qty: 24
• Multi pack size W x D x H: 1210mm x 1050mm x 1070mm / 47.6in x 41.3in x 42.1in
• Multi pack weight: 305kg / 670lb

Mounting Information:

• Overall diameter: 460mm / 18.11in
• Overall depth: 220mm / 8.7in
• Cut-out diameter: 414mm / 16.24in
• Mounting hole dimensions: 11x7mm / 0.43x0.28in
• Number of mounting holes: 8
• Mounting hole PCD: 441-432mm / 17.36-17.01in
• Unit weight: 11.6kg / 25.5lb

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