- Article number
- SB12PFC25-4
- EAN
- 0696277269518
- Woofer Series
- SB Acoustics PFC Paper series
- Woofer Type
- Midwoofer
- Nominal Diameter
- 4"
- Power Handling (RMS)
- 30 Watt
- Impedance (Z)
- 4 Ω
- Sensitivity (SPL at 1m / 2.83V)
- 87.5 dB
- Frequency Response
- 80 - 9,500 Hz
- Voice Coil Diameter
- 25 mm
- DC Resistance (Re)
- 3.1 Ω
- Voice Coil Inductance (Le)
- 0.26 mH
- Resonant Frequency (Fs)
- 58 Hz
- Mechanical Q (Qms)
- 3.4
- Electromagnetic Q (Qes)
- 0.49
- Total Q (Qts)
- 0.43
- Diaphragm Mass Inc. Airload (Mms)
- 5.3 g
- Mechanical Compliance of Suspension (Cms)
- 1.42 mm/N
- Surface Area of Cone (Sd)
- 50 cm²
- BL Product (BL)
- 3.5 Tm
- Compliance Equivalent Volume (Vas)
- 5.1 L
- Maximum Linear Excursion (Xmax)
- 5 mm
- Cone / Diaphragm Material
- Paper
- Voice Coil Wire Material
- CCAW
- Voice Coil Former
- Kapton
- Basket / Frame Material
- Stamped Steel
- Magnet Material
- Ferrite
- Overall Outside Diameter
- 209 mm
- Baffle Cutout Diameter
- 184.5 mm