Standard
7” Paper Cone Woofer
FSB523070-7402
Features
7”, Steel Frame
1.0” PESVW Voice Coil, Kapton Former
Paper Cone, Cloth Surround
Ferrite Magnet Motor System
High Sensitivity
Parameters
Size
7 Inch
Fs
65 Hz
Re
3.6 Ohms
Sensitivity
91 dB
Quality Factor
0.81 Qts
Rated Power
5 W
This is a 7 inch 4 ohm driver, it is a Woofer features 1 inch voice coil with PESVW. In term of suspension system, cone is consisted by Paper Cone body with Cloth surround and spider is consisted by NC. In term of magnet motor system, magnet is consisted by Ferrite material. It can be used on party speaker system.
Family
Range
| T-S Parameters | |
|---|---|
| Resonance frequency [fs] | 65.7 Hz |
| Mechanical Q factor [Qms] | 16.2 |
| Electrical Q factor [Qes] | 0.85 |
| Total Q factor [Qts] | 0.81 |
| Force factor [Bl] | 5.2 Tm |
| Mechanical resistance [Rms] | 0.39 kg/s |
| Moving mass [Mms] | 15.4 g |
| Compliance [Cms] | 0.38 mm/N |
| Effective diaph. diameter [D] | 144 mm |
| Effective piston area [Sd] | 162.8 cm² |
| Equivalent volume [Vas] | 14.24 l |
| Sensitivity (2.83V/1m) | 91 dB |
| Ratio Bl/√Re | 2.74 N/√W |
| Ratio fs/Qts | 81.1 Hz |
| Electrical Data | |
|---|---|
| Nominal impedance [Zn] | 4 Ω |
| Minimum impedance [Zmin] | 3.9 Ω |
| Maximum impedance [Zo] | 35 Ω |
| DC resistance [Re] | 3.6 Ω |
| Voice coil inductance [Le] | 0.35 mH |
| Power Handling | |
|---|---|
| 100h RMS noise test (IEC 18.4) | 5 W |
| Long-term max power (IEC 18.2) | 60 W |
| Voice Coil & Magnet Data | |
|---|---|
| Voice coil diameter | 25.4 mm |
| Voice coil height | 9.3 mm |
| Voice coil layers | 2 |
| Height of gap | 5 mm |
| Linear excursion | ± 2.15 mm |
| Max mech. excursion | ± - mm |
| Unit weight | 1.1 kg |
