Celestion FTR18-4080FD 18-inch 1000W 8-ohm ferrite woofer

Product specifications

• 18" ferrite woofer
• 4" voice coil
• power handling: 1000 Wrms
• nominal impedance: 8 ohms
• sensitivity: 97 dB
• frequency range: 30 - 2500 Hz
• voice coil diameter: 100 mm (4")
• weather-resistant cone
• FlexirolTM surround
• dual suspension
• chassis type: die-cast aluminium
• magnet-type: ceramic (ferrite/ferrite)
• magnet weight: 3.1 kg (110 oz)
• coil material: round copper
• surround material: fabric seal
• voice coil carrier material: glass fibre
• cone material: impregnated paper, glass-fibre reinforced
• Xmax: 6 mm (0.24")
• aperture depth: 10 mm (0.39")
• winding-width voice coil: 22 mm (0.87")

Thiele/small parameters

• BI: 22.88 Tm
• Cms: 0.22 mm/N
• D: 0.38 m (14.96")
• Fs: 26 Hz
• Le (at 1 kHz): 1.41 mH
• Mmd: 150.81 g (5.32 oz)
• Mms: 172.42 g (6.08 oz)
• Qes: 0.29
• Qms: 4.33
• Qts: 0.27
• Re: 5.39 ohms
• Rms: 6.506 kg/s
• Vas: 395.56 lt (13.96 ft3)

Mounting

• cut-out diameter: 416 mm (16.38")
• diameter: 462 mm (18.19")
• fixing slot dimensions: 10 x 7 mm (0.39 x 0.27 in)
• number of mounting slots: 8
• overall depth: 205 mm (8.07")
• total weight: 9.8 kg (21.6 lb)
• PCD mounting range: 429 - 440 mm (16.89 - 17.32 inches)