Celestion TF1225 12-inch 250W 8-ohm ferrite woofer

Product specifications

• 12-inch ferrite woofer
• 2.5-inch voice coil
• for use in 2-way or 3-way systems
• capacity: 250 W RMS
• nominal impedance: 8 ohms
• sensitivity: 97 dB
• frequency range: 50 - 4000 Hz
• voice coil diameter: 2.5 in
• chassis type: pressed steel
• magnet type: ceramic (Ferrite)
• magnet weight: 1.2 kg
• surround material: cloth-sealed
• coil material: copper wire
• former material: polyamide
• cone material: Kevlar-loaded paper
• single suspension
• Xmax: 2.5 mm
• gap depth: 8 mm
• voice coil winding width: 13 mm

small signal parameters

• BI: 13,20 Tm
• Cms: 0,14 mm/N
• D: 0.26 m
• Fs: 63 Hz
• Le (@ 1 kHz): 0.84 mH
• Mmd: 39.60 g
• Mms: 46.51 g
• Qes: 0.54
• Qms: 6.70
• Qts: 0.50
• Re: 5.13 ohms
• Rms: 2.76 kg/s
• Vas: 54.5 lt

mounting information

• cut-out diameter: 283 mm
• diameter: 309 mm
• mounting slot dimensions: 7.9 mm
• number of mounting slots: 4
• total depth: 130 mm
• overall weight: 4.1 kg
• PCD mounting range: 297 mm