Celestion TF1225CX
 8Ω
Coaxial
| Nominal diameter | 12″ / 305 mm | 
| Resonance | 63.5 Hz | 
| Q factor | 0.36 | 
| Sensitivity | 95.6 dB | 
| Linear excursion | ± 4.5 mm | 
| Program Power | 500 W | 
.png)
.png)
.jpg)
Specifications
- Sensitivity (1W, 1m, infinite baffle) SPL1W 95.6dB
 - Frequency response 40 - 18000Hz
 
Thiele & Small parameters
- Resonance frequency (free air) fS 63.5Hz
 - Mechanical quality factor QMS 3.12
 - Electrical quality factor QES 0.41
 - Total quality factor QTS 0.36
 
Large signal parameters
- Maximum linear excursion xmax 4.5mm
 - Air volume displaced at xmax VD 239cm³
 - Power handling P 250W
 - Program power Pmax 500W
 
Voice Coil
- Nominal impedance Z 8Ω
 - DC resistance RE 5.6Ω
 - Inductance (1kHz) LE 1.2mH
 - VC Diameter 64mm
 - Winding height HVC 13mm
 - Winding material Round copper
 - Former material Polyimide
 
Magnet
- Force factor Bl 17.5N/A
 - Motor constant Bl/√RE 7.4N/√W
 - Air gap height HAG 8mm
 - Weight 1.2kg
 - Material Ferrite
 
Diaphragm
- Effective diameter 260mm
 - Effective area SD 531cm²
 - Moving mass MMS 55.6g
 - Moving mass (without air load) MMD 47g
 - Material Kevlar loaded paper
 
Suspensions
- Stiffness KMS 9.09N/mm
 - Compliance CMS 110µm/N
 - Equivalent volume to the compliance VAS 45.1L
 - Mechanical resistance RMS 7.11N·s/m
 - Surround material Cloth-sealed
 
Dimensions
- Nominal diameter 12″
 - 305mm
 - Overall diameter 309mm
 - Baffle cutout diameter 286mm
 - Overall depth 172mm
 - Volume occupied by the driver (estimated) 2.5L
 - Net weight 4.6kg
 - Frame material Pressed steel
 
.jpg)
.png)
Export this driver to a simulation software:
Closed Box Simulator·
Speakerbench
WinISD
Basta!
Hornresp
QSpeakers
SpeakerSim
MfbLabs
.jpg.webp)
.jpg.webp)
.jpg.webp)