Standard
4" Carbon Fiber Cone Woofer
FSB521540-4808
Features
4", Steel Frame
1" EISVW Voice Coil, Aluminum Former
Carbon Cone, Rubber Surround
Strong Ferrite Magnet Motor System
Parameters
Size
4 Inch
Fs
100 Hz
Re
6.88 Ohms
Sensitivity
85 dB
Quality Factor
0.76 Qts
Rated Power
15 W
This is a 4 inch 8 ohm driver, it is a Woofer features 1 inch voice coil with EISVW. In term of suspension system, cone is consisted by Carbon Cone body with NBR surround and spider is consisted by Conex. In term of magnet motor system, magnet is consisted by Ferrite material. It can be used on bookshelf audio.
Family
Range
Characteristics
| T-S Parameters | |
|---|---|
| Resonance frequency [fs] | 99 Hz |
| Mechanical Q factor [Qms] | 5.799 |
| Electrical Q factor [Qes] | 0.882 |
| Total Q factor [Qts] | 0.765 |
| Force factor [Bl] | 5.594 Tm |
| Mechanical resistance [Rms] | 0.694 kg/s |
| Moving mass [Mms] | 6.408 g |
| Compliance [Cms] | 0.399 mm/N |
| Effective diaph. diameter [D] | 82 mm |
| Effective piston area [Sd] | 52.8 cm² |
| Equivalent volume [Vas] | 1.573 l |
| Sensitivity (2.83V/1m) | 85 dB |
| Ratio Bl/√Re | 2.14 N/√W |
| Ratio fs/Qts | 129.41 Hz |
| Electrical Data | |
|---|---|
| Nominal impedance [Zn] | 8 Ω |
| Minimum impedance [Zmin] | 6.78 Ω |
| Maximum impedance [Zo] | 29.84 Ω |
| DC resistance [Re] | 6.88 Ω |
| Voice coil inductance [Le] | 0.317 mH |
| Power Handling | |
|---|---|
| 100h RMS noise test (IEC 18.4) | 15 W |
| Long-term max power (IEC 18.2) | - W |
| Voice Coil & Magnet Data | |
|---|---|
| Voice coil diameter | 25.4 mm |
| Voice coil height | 7.7 mm |
| Voice coil layers | 2 |
| Height of gap | 6 mm |
| Linear excursion | ± 0.85 mm |
| Max mech. excursion | ± - mm |
| Unit weight | 0.907 kg |
