Professional Loudspeakers
Your Global Driver Solutions Partner
Celestion International Ltd, Claydon Business Park, Great Blakenham, Ipswich IP6 ONL, UK
Celestion adopts a progressive policy and reserve the right to alter drive unit specifications and/or appearance without prior notice 08/05
TF1218
General Specifications
Nominal diameter (mm/in)...................................... 305/12
Power rating (AES, W rms) ......................................... 100
Nominal impedance (
Ω
) ................................................. 8
Voice coil diameter (mm/in)................................ 44.5/1.75
Magnet type............................................................ Ferrite
Magnet weight (kg/oz)............................................0.88/31
Chassis type ................................................. Pressed steel
Sensitivity (dB) .............................................................. 97
Frequency range (Hz)........................................... 60-4500
Coil material ............................................... Round copper
Former material .................................................. Polyimide
Cone material ..................................... Kevlar loaded paper
Surround material .......................................... Cloth-sealed
Suspension ............................................................. Single
Xmax (mm/in)...................................................... 2.0/0.08
Gap depth (mm/in)............................................... 6.0/0.24
Voice coil winding width (mm/in) ....................... 10.0/0.39
Small Signal Parameters
D (m/in) .......................................................... 0.26/10.24
Fs(Hz) .......................................................................... 62
Mair (g/oz) ...................................................... 6.91/0.244
Mmd (g/oz) ...................................................... 32.50/1.15
Qms .......................................................................... 4.90
Qes ........................................................................... 0.72
Qts ........................................................................... 0.63
Re(
Ω
) ...................................................................... 5.55
Vas (lt/ft3) .......................................................... 66.6/2.35
Bl (Tm) ................................................................... 10.90
Cms (mm/N) .............................................................. 0.17
Rms (kg/s) ................................................................. 3.14
Le(mH).......................................................................0.57
Mounting Information
Overall diameter (mm/in) .................................. 309/12.17
Overall depth (mm/in).......................................... 125/4.92
Cut-out diameter (mm/in).................................. 283/11.14
Mounting slot dimensions (mm/in)..................... Ø 7.9/0.31
Number of mounting slots ............................................... 4
Mounting PCD range (mm/in) ............................ 297/11.69
Unit weight (kg/lb).................................................. 2.7/6.0
Packed Dimensions & Weight
Single pack size W x D x H (mm/in)...........330 x 330 x 150
............................................................ /13.0 x 13.0 x 5.9
Single pack weight (kg/lb) ........................................ 4/8.8
Multi pack (60) size W x D x H (mm/in) ...... 1080 x 980 x 880
.......................................................... /42.5 x 38.6 x 34.6
Multi pack (60) weight (kg/lb) .............................. 250/551
• Bass and mid range driver offering a superior
price/performance ratio
• Kevlar-impregnated cone with sealed surround and damping for
reduced distortion
• High temperature copper voice coil wound on polyimide for
increased reliability
• Suitable for use in 2-way systems
Frequency Response and Impedance Curves
FREQUENCY (Hz) Measured - 1W @ 1m, 2π
