Celestion TF1225 - T5311 - 8 ohm - Woofer

Features Include

• 12" Bass and mid-range driver providing 97dB sensitivity and 250Wrms (AES standard) power handling
• 2.5" high temperature copper voice coil wound on polyimide for increased reliability
• Optimized ferrite magnet design reduces weight
• Double roll surround for greater excursion control
• For use in 2-way or compact 3-way systems

  General Specifications

  Nominal diameter

  305mm/12in
  Power rating¹

  250Wrms
  Continuous power rating²

  500W
  EIA power rating³

  400W
  Nominal impedance

  8Ω
  Sensitivity⁴

  97dB
  Frequency range

  50-4000Hz
  Voice coil diameter

  64mm/2.5in
  Chassis type

  Pressed steel
  Magnet type

  Ferrite
  Magnet weight

  1.2kg/42oz
  Coil material

  Round copper
  Former material

  Polyimide
  Cone material

  Kevlar loaded paper
  Surround material

  Cloth-sealed
  Suspension

  Single
  Xmax⁵

  2.5mm/0.1in
  Gap depth

  8mm/0.31in
  Voice coil winding width

  13mm/0.51in

  Small Signal Parameters

  D

  0.26m/10.24in
  Fs

  63Hz
  Mms

  46.51g/1.64oz
  Qms

  6.70
  Qes

  0.54
  Mmd

  39.60g/1.40oz
  Qts

  0.50
  Re

  5.13Ω
  Vas

  54.5lt/1.92ft³
  BI

  13.20Tm
  Cms

  0.14mm/N
  Rms

  2.76kg/s
  Le (at 1kHz)

  0.84mH

  Mounting Information

  Overall diameter

  309mm/12.17in
  Overall depth

  130mm/5.12in
  Cut-out diameter

  283mm/11.14in
  Mounting slot dimensions

  Ø 7.9/0.31
  Number of mounting slots

  4
  Mounting PCD range

  297mm/11.69in
  Unit weight

  4.1kg/9.0lb

  Packed Dimensions & Weight

  Single pack size W x D x H

  330mm x 330mm x 150mm
  /13.0in x 13.0in x 5.9in
  Single pack weight

  5kg/11lb
  Multi pack size W x D x H

  1080mmx980mmx880mm
  /42.5in x 38.6in x 34.6in
  Multi pack weight

  290kg/638lb