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Description
This 4 inch Woofer, features 1 inch voice coil, pulp with carbon fiber cone, and ferrite magnet motor system. As for the selection of material, this series of driver uses a new mixed material with pulp and 60% carbon fiber, it can greatly enhance the stiffness of the cone body and control range of the internal damping.
Features
- 4”, Aluminum Die-cast Frame
- 1” CCAW Voice Coil, Aluminum Former
- Pulp and Carbon Fiber Cone, Rubber Surround
- Ferrite Magnet Motor System
- Conex Spider
Parameters
Size
Fs
Re
Sensitivity
Quality Factor
Rated Power
4 Inch
60 Hz
4 Ohms
88 dB
0.4 Qts
35 W
Description
This 4 inch Woofer, features 1 inch voice coil, pulp with carbon fiber cone, and ferrite magnet motor system. As for the selection of material, this series of driver uses a new mixed material with pulp and 60% carbon fiber, it can greatly enhance the stiffness of the cone body and control range of the internal damping.
| T-S Parameters | |
|---|---|
| Resonance frequency [fs] | 62.5 Hz |
| Mechanical Q factor [Qms] | 3.12 |
| Electrical Q factor [Qes] | 0.459 |
| Total Q factor [Qts] | 0.4 |
| Force factor [Bl] | 4.306 Tm |
| Mechanical resistance [Rms] | 0.833 kg/s |
| Moving mass [Mms] | 6.616 g |
| Compliance [Cms] | 0.979 mm/N |
| Effective diaph. diameter [D] | 83 mm |
| Effective piston area [Sd] | 54.11 cm² |
| Equivalent volume [Vas] | 4.0568 l |
| Sensitivity (2.83V/1m) | 88 dB |
| Ratio Bl/√Re | 2.38 N/√W |
| Ratio fs/Qts | 156.25 Hz |
| Electrical Data | |
|---|---|
| Nominal impedance [Zn] | 4 Ω |
| Minimum impedance [Zmin] | 3.73 Ω |
| Maximum impedance [Zo] | 19.27 Ω |
| DC resistance [Re] | 3.27 Ω |
| Voice coil inductance [Le] | 0.085 mH |
| Power Handling | |
|---|---|
| 100h RMS noise test (IEC 18.4) | 35W |
| Long-term max power (IEC 18.2) | 50 W |
| Voice Coil & Magnet Data | |
|---|---|
| Voice coil diameter | 25.5 mm |
| Voice coil height | 12.5 mm |
| Voice coil layers | 2 |
| Height of gap | 6 mm |
| Linear excursion | ± 3.25 mm |
| Max mech. excursion | ± 11 mm |
| Unit weight | 0.95 kg |
