Celestion TF1225E 12-inch 300W 8-ohm ferrite woofer

Product specifications

• 12" ferrite woofer
• 2.5" voice coil
• for use in 2-way or compact 3-way systems
• power handling: 300 Wrms
• nominal impedance: 8 ohms
• sensitivity: 96 dB
• frequency range: 50 - 3000 Hz
• voice coil diameter: 64 mm (2.5")
• chassis type: pressed steel
• magnet type: ceramic (ferrite/ferrite)
• magnet weight: 1.4 kg (50 oz.)
• surround material: fabric seal
• coil material: edgewound copper
• voice coil carrier material: polyimide
• cone material: kevlar-reinforced paper
• single suspension
• Xmax: 3.5 mm (0.14")
• Aperture depth: 8 mm (0.31")
• winding-width voice coil: 14.5 mm (0.57")

Thiele/small parameters

• BI: 15.41 Tm
• Cms: 0.13 mm/N
• D: 0.26 m (10.24")
• Fs: 61.2 Hz
• Le (at 1 kHz): 1.1 mH
• Mmd: 46.31 g (1.63 oz)
• Mms: 53.24 g (1.88 oz)
• Qes: 0.44
• Qms: 4.80
• Qts: 0.40
• Re: 5.07 ohms
• Rms: 4.27 kg/s
• Vas: 50.6 lt (1.79 ft3)

Mounting

• cut-out diameter: 283 mm (11.14")
• diameter: 309 mm (12.17")
• fixing slot dimensions: 7.9 mm (0.31")
• number of fixing slots: 4
• overall depth: 139 mm (5.47")
• total weight: 4.4 kg (9.7 lb)
• PCD mounting range: 297 mm (11.69")