Celestion CF1540HD 15" Subwoofer w/Ferrite Magnet - 8 ohm - Open Box

• Balanced airflow venting provides enhanced cooling
• Twin demodulation rings
• Optimised double suspension
• Glass loaded paper cone with weather-resistant impregnation
• Continuous power rating : 2400W
• Nominal diameter : 381mm / 15in
• Power rating : 1200W
• Continuous power rating : 2400W
• Rated impedance : 8Ω
• Sensitivity : 97dB
• Frequency range : 35-2000Hz
• Chassis type : Cast aluminium
• Magnet type : Ferrite
• Voice coil diameter : 100mm / 4in
• Voice coil material : Round copper
• Former material : Glass fibre
• Cone material : Glass loaded paper (weather-resistant)
• Surround material : Cloth-sealed
• Suspension : Double
• Gap height (Hg)8mm / 0.31in
• VC winding height (Hvc)25mm / 0.98in

Parameters

• Sd : 855.30cm2 / 132.57in2
• Fs : 40.80Hz
• Mms : 145.53g / 5.13oz
• Qms : 5.591
• Qes : 0.323
• Qts : 0.305
• 15Ω
• Vas : 108.30l / 3.82ft3
• BI : 24.40Tm
• Cms : 0.11mm/N
• Le (at 1kHz) : 1.22mH
• Xmax : 10.5mm / 0.41in

Mounting Information

• Overall diameter : 393mm / 15.46in
• Overall depth : 184mm / 7.2in
• Cut-out diameter : 354mm / 13.94in
• Mounting hole dimensions : 10x7mm / 0.39x0.27in
• Number of mounting holes : 8
• Mounting hole PCD : 367-374mm / 14.45-14.72in

Frequency Response and Impedance Curves

• 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 2π anechoic environment.
• Parameters : Measured after unit subjected to pre-conditioning signal.
• Xmax : 0.5(Hvc-Hg) + 0.25Hg