Data Sheet

TF1230S
Ferrite Magnet Pressed Steel Chassis Woofer
General Specifications
Nominal diameter……..……....……....……. 305mm/12in
AES standard power handling……………....... 300Wrms
Continuous power handling .……….….……. ..600Wrms
Nominal impedance ……………..…….…….……..… 8Ω
Sensitivity ..................…....…........….............……. 96dB
Frequency range .......................................50Hz-4000Hz
Voice coil diameter……………………………...75mm/3in
Chassis type …….…...…...….….......…... Pressed Steel
Magnet type …….….…..…….…….……..…........ Ferrite
Magnet weight ...............................................1.7kg/59oz
Coil material ........................................Edgewound CCA
Former material .............................................. Polyimide
Cone material .................................Kevlar loaded paper
Surround material........................................Cloth sealed
Suspension ...........................................................Single
Xmax ........................................................4.5mm/0.18in
Gap depth.................................................... 8mm/0.31in
Voice coil winding width ............................ 17mm/0.67in
Small Signal Parameters
D ..............................................................0.26m/10.24in
Sd ......................................................530.93cm
2
/82.2in
2
Fs............................................................................50Hz
Mms ........................................................ 54.52g/1.92oz
Qms ........................................................................ 4.05
Qes ......................................................................... 0.46
Qts .......................................................................... 0.41
Re......................................................................... 5.79Ω
Vas .......................................................... 60.11lt/2.12ft
3
Bl ......................................................................15.48Tm
Cms.............................................................. 0.15mm/N
Mounting Information
Overall diameter .…...…….........….…...317.4mm/12.5in
Overall depth ..…..…..............…...……....137mm/5.39in
Cut-out diameter ...….................…….... 283mm/11.14in
Mounting slot dimensions.......................13mmx6.6mm/
...................................................................0.51inx0.26in
Number of mounting slots …..….......................….…... 8
Mounting slot PCD.................................. 299mm/7.59in
Unit Weight................................................... 4.3kg/9.5lb
Packed Dimensions & Weight
Single pack size ............... 330mm x 330mm x 150mm/
................................................................. 13inx13inx6in
Single pack weight........................................ 5.5kg/12lb
Celestion International Ltd, Claydon Business Park, Great Blakenham, Ipswich IP6 0NL, UK T: [phone] [e-mail] www.celestion.com
Celestion adopts a progressive policy and reserves the right to alter drive unit specifications and/or appearance without prior notice
Measured 1W @ 1m, 2π
Frequency Response and Impedance Curves
 Official replacement woofer for Mackie SRM 450 V2/3
 Tough 12” ferrite pro audio loudspeaker with Kevlar loaded cone and
robust steel chassis
 Optimised magnet assembly delivers impressive power to weight ratio
 3” high temperature edgewound copper clad aluminium voice coil
wound on glass fibre former for enhanced reliability
 Double roll surround provides exceptional linearity at extremes of cone
excursion
 300Wrms (AES standard) power handling
Features