(2) Celestion PowerProX18 8 ohm 2400 Watt 18" Subwoofers w/Ferrite Magnets

Package Includes:

• (2) Celestion PowerProX18 8 ohm 2400w 18" Subwoofer w/Ferrite Magnet+4" Voice Coil

Description:

18-inch, cast aluminum chassis, ferrite magnet LF loudspeaker.

Features:

• PowerProX speakers are built for maximum performance and reliability throughout the lifespan of each speaker
• Dynamic airflow venting delivers class-leading heat management with an average 20C lower voice coil temperature
• Polysiloxane laminated dual suspension provides greater stability and improved cone displacement symmetry
• Aluminium demodulation ring reduces harmonic and intermodulation distortion caused by voice coil displacement
• Double-sided, weatherproof cone coating for moisture protection and enhanced durability

Specifications:

• Nominal diameter: 457mm / 18in
• Power rating: 1200W
• Continuous power rating: 2400W
• Rated impedance: 8?
• Sensitivity: 97dB
• Frequency range: 35-1000Hz
• Chassis type: Cast aluminum
• Magnet type: Ferrite
• Magnet weight: 3.5kg / 124oz
• Voice coil diameter: 100mm / 4in
• Voice coil material: Round copper
• Former material: Glass fibre
• Cone material: Glass loaded cellulose, water-resistant coating front & back
• Surround material: Cloth-sealed
• Suspension: Dual-laminated
• Gap height (Hg): 11.75mm / 0.46in
• VC winding height (Hvc): 25mm / 0.98in

Parameters:

• Sd: 1210.0cm2 / 187.6in2
• Fs: 34.8Hz
• Mms: 229.98g / 8.1oz
• Qms: 3.147
• Qes: 0.431
• Qts: 0.379
• Re: 5.1O
• Vas: 188.9l / 6.67ft3
• BI: 24.38Tm
• Cms: 0.091mm/N
• Rms: 15.96kg/s
• Le (at 1kHz): 1.61mH
• Xmax: 9.5mm / 0.37in
• Xmech: 48mm / 1.9in
• Efficiency ?0: 1.8%

Mounting Information:

• Overall diameter: 460mm / 18.1in
• Overall depth: 225mm / 8.9in
• Cut-out diameter: 414mm / 16.29in
• Mounting hole dimensions: 11x7mm / 0.43x0.28in
• Number of mounting holes: 8
• Mounting hole PCD: 441-432mm / 17.36-17.31in
• Flange & gasket thickness: 16.2mm / 0.64in
• Unit weight: 13.2kg / 29.1lb

Measurement Note:

• Power rating: Tested for two hours using a continuous, band-limited pink noise signal as per AES standard. Power calculated on minimum impedance. Loudspeaker tested in free air.
• Continuous power rating: Defined as 3dB greater than the AES rating.
• Sensitivity: Measured on axis at 1W, 1m in 2p anechoic environment.
• Parameters: Measured after unit subjected to pre-conditioning signal.
• Xmax: 0.5*(Hvc-Hg) + 0.25*Hg
• Xmech: Maximum peak-to-peak excursion before damage.