04W25-8CF BASS/MID RANGE DRIVER
KEY FEATURES:
- 92dB 1W/1m sensitivity
- 40W AES power handling
- 100Hz-20kHz frequency response
- 25.8mm (1.0in) copper clad aluminum voice coil
- Copper demodulating ring for lower distortion
- Suitable for sound column systems and multi-way systems
Description
NOTES:
1、Two hours test according to AES 2-1984 Rev. 2003. Power calculated on rated minimum impedance.
2、Maximum power is defined as 3dB greater than Nominal power.
3、Applied RMS Voltage is set to 2.83 V for 8 ohms Nominal Impedance.
4、Xmax= [(winding depth – magnetic gap depth)/2] + (magnetic gap depth/3).
5、Thiele-Small parameters are measured after a preconditioning test.
6、Power test made with continuous pink noise signal within the frequency range.
General Specifications
| Part Number | 04W25-8CF |
| Nominal Diameter | 100.5mm (4in) |
| Nominal Impedance | 8Ω |
| Minimum Impedance | 6.3Ω |
| AES Power Handling1 | 40W |
| Maximum Power Handling2 | 80W |
| Sensitivity (1W/1m)3 | 92dB |
| Resonance Frequency | 100Hz |
| Frequency Range | 100Hz-20kHz |
| Voice Coil Diameter | 25.8mm |
| Winding Material | Copper Clad Aluminum |
| Former Material | Polyimide |
| Winding Depth | 7.2mm |
| Magnetic Gap Depth | 4mm |
| Xmax4 | 2.9mm |
| Flux Density | 1.1T |
| Basket Material | Pressed Steel |
| Magnet Material | Ferrite |
| Suspension Material | Fabric |
| Surround Material | Half-Roll Rubber |
| Cone Material | Curvilinear Paper |
| Net Weight | 0.75kg |
Frequency Response Curve
Impedance Curve
TS Parameters5
| Model Number | 04W25-8CF |
| Fs | 103Hz |
| Re | 5.4Ω |
| Le | 0.04mH |
| Mms | 5.2g |
| Mmd | 5.0g |
| Cms | 0.42mm/N |
| BL | 5.4Tm |
| Qms | 8.2 |
| Qes | 0.65 |
| Qts | 0.60 |
| Vas | 1.5L |
| Ref. Efficiency | 0.27% |
| Sd | 50.3cm2 |
| EBP | 158Hz |
Mechanical Drawing
Additional information
| Series | C SERIES |
|---|---|
| Diameter | 4in |
| Nominal Impedance | 8Ω |
| Continuous Power Handling | 40W |
| Voice Coil Diameter | 25.8mm |
| Maximum Excursion | 2.9mm |
| Magnet Material | Ferrite |
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