1. Nominal Diameter 4 inch / (105 x105 mm)
2. Power Handling 25 watts
3. Sensitivity 86 dB
4. Frequency Response 130 Hz - 18 kHz
5. Voice Coil Diameter 1.0 inch / 25 mm
6. Dual Magnet 8+6.4 Oz
7. Pressed Steel Chassis type
8. Applications as an economical bass / mid range woofer for PA speaker
SPECIFICATIONS |
Model No. | 4SB25-2 |
Nominal Diameter | 4" / (105 x 105 mm) |
RMS Power | 25 watts |
MAX Power | 50 watts |
Sensitivity (1w/1m) | 86 dB |
Frequency Range | 130 Hz - 18 kHz |
Voice Coil Diameter | 1.0" / 25 mm |
Available Impedances | 16 Ω |
Magnet Size | 8 + 6.4 Oz |
Magnet Material | Ferrite |
Chassis type | Pressed Steel |
Voice Coil Material | Copper |
Former Material | Kapton |
Dust Dome Material | Paper |
Suspension Material | Polycotton |
Surround Material | Fabric |
Cone Material | Paper |
| |
THIELE SMALL PARAMETERS |
Fs | 120 Hz |
Qes | 1.14 |
Qms | 6.74 |
Qts | 0.98 |
Vas | 1.43 L |
Sd | 0.0049 m2 |
η0 | 0.20% |
Mms | 4.22 g |
BI | 6.43 Txm |
Cms | 0.43 mm/N |
Rms | 0.47 WM |
Le1k | 0.52 mH |
| |
MOUNTING & DIMENSIONS & WEIGHT |
Overall Diameter | 5.20" / 132 mm |
Bolt Circle Diameter | 4.39" / 111.5mm |
Baffle Cut-out Diameter | 3.58" / 91 mm |
Overall Depth | 2.83" / 72 mm |
Net Weight | 0.70 kgs / 1.54 lbs |