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
FTR15-4080F
General Specifications
Nominal diameter (mm/in)...................................... 381/15
Power rating (AES, W rms) ......................................... 600
Nominal impedance (
Ω
) ................................................. 8
Voice coil diameter (mm/in)...................................... 100/4
Magnet type............................................................ Ferrite
Magnet weight (kg/oz)............................................3.1/110
Chassis type.............................................. Cast Aluminium
Sensitivity (dB) .............................................................. 97
Frequency range (Hz)........................................... 35-3000
Coil material ............................................... Round copper
Former material ................................................ Glass fibre
Cone material ................. Glass loaded paper with weather
........................................................resistant impregnation
Surround material .......................................... Cloth-sealed
Suspension ............................................................. Single
Xmax (mm/in)...................................................... 6.0/0.24
Gap depth (mm/in)............................................. 10.0/0.39
Voice coil winding width (mm/in) ....................... 22.0/0.87
Small Signal Parameters
D (m/in) .......................................................... 0.33/12.99
Fs (Hz).......................................................................... 35
Mmt (g/oz) .................................................... 117.83/4.16
Mmd (g/oz) .................................................... 103.68/3.66
Qms .......................................................................... 3.68
Qes ........................................................................... 0.26
Qts ........................................................................... 0.24
Re(
Ω
) ...................................................................... 5.62
Vas (lt/ft3) ........................................................ 182.8/6.45
Bl (Tm) ................................................................... 23.69
Cms (mm/N) .............................................................. 0.18
Rms (kg/s) ............................................................... 7.019
Le (mH)...................................................................... 1.48
Mounting Information
Overall diameter (mm/in) .................................. 385/15.16
Overall depth (mm/in).......................................... 170/6.69
Cut-out diameter (mm/in).................................. 351/13.82
Mounting slot dimensions (mm/in)......... 7 x 10/0.28 x 0.39
Number of mounting slots ............................................... 8
Mounting PCD range (mm/in) .......... 365-375/14.37-14.76
Unit weight (kg/lb)................................................ 9.4/20.7
Packed Dimensions & Weight
Single pack size W x D x H (mm/in) ...........435 x 435 x 200
............................................................./17.1 x 17.1 x 7.9
Single pack weight (kg/lb) ................................. 10.7/23.6
Multi pack (36) size W x D x H (mm/in) ..............................
..............................1200 x 1000 x 980/47.2 x 39.4 x 38.6
Multi pack (36) weight (kg/lb) .............................. 386/851
• 600Wrms continuous power handling (AES Standard)
• Flexirol
TM
technology for greater excursion control
• Saturated gap technology for lower harmonic distortion
• Low frequency response, down to 35Hz
• Smart chassis design minimises acoustic distortion
• Specially treated weather-resistant cone
Frequency Response and Impedance Curves
FREQUENCY (Hz) Measured - 1W @ 1m, 2π
