FTX1225
12-inch cast aluminium chassis, ferrite magnet coaxial driver
- Ferrite magnet assembly acts as common motor for both LF and HF
- Polyimide HF diaphragm
- Demodulation ring
- 90° nominal HF coverage
- HF repair kit available
Specifications
600W
Continuous power rating
97dB
Sensitivity
2.5in
Voice coil diameter LF
1.75in
Voice coil diameter HF
Nominal diameter
305mm / 12in
Power rating
300W
Continuous power rating
600W
Rated impedance
8Ω
Sensitivity
97dB
Frequency range
50-4000Hz
Chassis type
Cast aluminium
Magnet type
Ferrite
Magnet weight
2.3kg / 81oz
Voice coil diameter
64mm / 2.5in
Voice coil material
Edgewound copper clad aluminium
Former material
Glass fibre
Cone material
Kevlar loaded paper
Surround material
Cloth-sealed
Suspension
Single
Gap height (Hg)
8mm / 0.31in
VC winding height (Hvc)
16mm / 0.63in
Parameters
Sd
530.93cm2 / 82.29in2
Fs
47.3Hz
Mms
53.501g / 1.89oz
Qms
4.214
Qes
0.437
Qts
0.396
Re
5.39Ω
Vas
84.59I / 2.99ft3
BI
14.00Tm
Cms
0.212mm/N
Rms
3.77kg/s
Le (at 1kHz)
3.36mH
Xmax
6mm / 0.24in
Mounting Information
Overall diameter
318mm / 12.5in
Overall depth
168mm / 6.6in
Cut-out diameter
286mm / 11.26in
Mounting hole dimensions
7.5x6.5mm / 0.29x0.26in
Number of mounting holes
8
Mounting hole PCD
298-304mm / 11.70-11.97in
Unit weight
5.9kg / 13lb
Packed Dimensions & Weight
Single pack size W x D x H
364mm x 364mm x 189mm / 14.3in x 14.3in x 7.4in
Single pack weight
6.7kg / 14.7lb
Multi pack qty
48
Multi pack size W x D x H
970mm x 1070mm x 850mm / 38.1in x 42.1in x 33.4in
Multi pack weight
315kg / 690lb
Additional HF Specifications
Power rating
60W
Continuous power rating
120W
Rated impedance
8Ω
Sensitivity
104dB
Frequency range
1000-20,000Hz
Recommended min. crossover 12dB/oct
2000Hz
Voice coil diameter
45mm / 1.75in
Magnet type
Dual-ferrite magnet motor
Diaphragm material
Polyimide
Surround material
Polyimide
Frequency Response and Impedance Curves
Black: LF response curve | Red: HF response curve
Power rating: Tested for two hours using a continuous, band-limited pink noise signal as per AES standard. Power calculated on minimum impedance. Loudspeaker tested in free air.
HF power rating: Tested for two hours on plane wave tube using a continuous, band-limited pink noise signal as per AES standard. Power calculated on minimum impedance.
Continuous power rating: Defined as 3dB greater than the AES rating.
Sensitivity: Measured on axis at 1W, 1m in 2π anechoic environment.
Xmax: 0.5*(Hvc-Hg) + 0.25*Hg
Suggested crossover design available online at celestion.com/speakerworld
Watch
FTX Series
