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 TC
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)..............................................1.4/50
Chassis type ................................................. Pressed steel
Sensitivity (dB) .............................................................. 98
Frequency range (Hz)........................................... 50-8000
Coil material ............................................... Round copper
Former material .................................................. Polyimide
Cone material ..................................... Kevlar loaded paper
Surround material .......................................... Cloth-sealed
Suspension ............................................................. Single
Xmax (mm/in)...................................................... 1.5/0.06
Gap depth (mm/in)............................................... 8.0/0.31
Voice coil winding width (mm/in) ....................... 10.0/0.39
Small Signal Parameters
D (m/in) .......................................................... 0.26/10.24
Fs(Hz) .......................................................................... 56
Mair (g/oz) ...................................................... 6.91/0.244
Mmd (g/oz) ...................................................... 33.10/1.17
Qms .......................................................................... 4.40
Qes ........................................................................... 0.45
Qts ........................................................................... 0.41
Re(
Ω
) ...................................................................... 5.75
Vas (lt/ft3) .......................................................... 80.2/2.83
Bl (Tm) ................................................................... 13.50
Cms (mm/N) .............................................................. 0.20
Rms (kg/s) ................................................................. 3.17
Le(mH).......................................................................0.65
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)................................................ 4.7/10.4
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
• Full range twin cone drive unit with high sensitivity and an
extended top end
• Vented magnet assembly for enhanced cooling
• Double roll surround for greater excursion control
• A cost-effective solution for full range system design
Frequency Response and Impedance Curves
FREQUENCY (Hz) Measured - 1W @ 1m, 2π
