SB Acoustics Speaker Shallow Subwoofer Driver 10″ SW26SFC38-4

Features
- Shallow light weight design
- Hard pressed vented paper cone (made in-house)
- Inverted low damping rubber surround
- Symmetric suspension
- Stacked neodymium motor with built-in soft limiting
- Non-conducting fiber glass coil former
- Long life lead wires

Specs
- Nominal impedance, 4 Ω
- DC resistance, Re 3.5 Ω
- Voice coil inductance, Le 1.27 mH
- Effective piston area, Sd 340 cm2
- Voice coil diameter 38.5 mm
- Voice coil height 16 mm
- Air gap height 9 mm
- Linear coil travel (p-p) 7 mm
- Magnetic flux density 0.72 T
- Magnet weight 0.1 kg
- Net weight 0.94 kg
- Free air resonance, Fs 27 Hz
- Sensitivity (2.83 V / 1 m) 91.5 dB
- Mechanical Q-factor, Qms 4.94
- Electrical Q-factor, Qes 0.30
- Total Q-factor, Qts 0.29
- Moving mass incl.air, Mms 64 g
- Force factor, BI 11.2 Tm
- Equivalent volume, Vas 88 liters
- Compliance, Cms 0.54 mm/N
- Mechanical loss, Rms 2.2 kg/s
- Rated power handling* 80 W
* IEC 268-5, T/S parameters measured on drive units that are broke in.