TF1225CX
12-inch pressed steel chassis, ferrite magnet coaxial driver
- Field replaceable PETP Film HF diaphragm
- 80° nominal HF coverage
Specifications
500W
Continuous power rating
97dB
Sensitivity
2.5in
Voice coil diameter LF
1.75in
Voice coil diameter HF
Nominal diameter
305mm / 12in
Power rating
250W
Continuous power rating
500W
Rated impedance
8Ω
Sensitivity
97dB
Frequency range
40-4000Hz
Chassis type
Pressed steel
Magnet type
Ferrite
Magnet weight
1.2kg / 42oz
Voice coil diameter
64mm / 2.5in
Voice coil material
Round copper
Former material
Polyimide
Cone material
Kevlar loaded paper
Surround material
Cloth-sealed
Suspension
Single
Gap height (Hg)
8mm / 0.31in
VC winding height (Hvc)
13mm / 0.51in
Parameters
Sd
530.93cm2 / 82.29in2
Fs
63.50Hz
Mms
55.59g / 1.96oz
Qms
3.119
Qes
0.405
Qts
0.358
Re
5.57Ω
Vas
45.12I / 1.59ft3
BI
17.46Tm
Cms
0.11mm/N
Rms
7.11kg/s
Le (at 1kHz)
1.20mH
Xmax
4.5mm / 0.18in
Mounting Information
Overall diameter
309mm / 12.2in
Overall depth
172mm / 6.8in
Cut-out diameter
286mm / 11.2in
Mounting hole dimensions
7.9mm / 0.31in Ø
Number of mounting holes
4
Mounting hole PCD
297mm / 11.69in
Unit weight
4.6kg / 10.1lb
Packed Dimensions & Weight
Single pack size W x D x H
354mm x 354mm x 189mm / 13.9in x 13.9in x 7.4in
Single pack weight
5.4kg / 11.8lb
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
250kg / 550lb
Additional HF Specifications
Power rating
40W
Continuous power rating
80W
Rated impedance
8Ω
Sensitivity
110dB
Frequency range
1200-18,000Hz
Recommended min. crossover 12dB/oct
2200Hz
Voice coil diameter
45mm / 1.75in
Magnet type
Neodymium
Diaphragm material
PETP film
Surround material
PETP film
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 designs available at celestion.com/blog
