The highest quality speaker driver units that you can find.


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Product Specifications
Manufacturer SB ACOUSTICS
Speaker Type Fiber Cone Midbass
Nominal Diameter 15cm
Impedance 4 ohms
Power Handling (RMS) 40 W
Frequency Response 44 Hz
Sensitivity 89 dB
Voice Coil Diameter 25mm

SB ACOUSTICS SB13PFCR25-4, 15cm FIBER CONE MIDWOOFER 4OHM Features Vented reinforced plastic chassis Proprietary cone material with natural fibers made in-house Soft low damping rubber surround for improved transient response Optimized motor system Vented coil former for low compression Non-resonant long life lead wires Specs Nominal Impedance 4 Ω DC resistance, Re 3.2 Ω Voice coil inductance, Le 0.56 mH Effective piston area, Sd 87 cm2 Voice coil diameter 25.4 mm Voice coil height 14 mm Air gap height 5 mm Linear coil travel (p-p) 9 mm Magnetic flux density 1.06 T Magnet weight 0.36 kg Net weight 0.91 kg Free air resonance, Fs 44 Hz Sensitivity (2.83 V / 1 m) 89 dB Mechanical Q-factor, Qms 2.6 Electrical Q-factor, Qes 0.33 Total Q-factor, Qts 0.29 Moving mass incl. air, Mms 10.5 g Force factor, Bl 5.3 Tm Equivalent volume, VAS 13.4 liters Compliance, Cms 1.25 mm/N Mechanical loss, Rms 1.1 kg/s Rated power handling* 40 W * IEC 268-5, T/S parameters measured on drive units that are broken in.

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