The highest quality speaker driver units that you can find.


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Product Specifications
Manufacturer SB ACOUSTICS
Speaker Type White Papyrus Cone Neodymium Midbass
Nominal Diameter 13cm
Impedance 4 ohms
Power Handling (RMS) 40 W
Resonance Frequency 41 Hz
Sensitivity 89 dB
Voice Coil Diameter 31mm

SB ACOUSTICS SATORI MW13PNW-4, 13cm PAPYRUS CONE NEODYMIUM MIDWOOFER white 4OHM Features Vented aerodynamic cast aluminium chassis for optimum strength and low compression Proprietary cone material with EGYPTIAN PAPYRUS™ fibres made in-house Soft low damping rubber surround for optimum transient response Advanced BIMAX spider for improved linearity Powerful optimized low distortion neodymium motor system Non-conducting fibre glass voice coil former for minimum damping Extended copper sleeve on pole piece for low inductance and reduced distortion CCAW voice coil for reduced moving mass Long life silver lead wires attached 180° apart for improved stability Vented pole piece and coil former for reduced compression High piston to chassis diameter ratio Gasket and bolt hole protrusions for reduced coupling to speaker cabinet Specs Nominal Impedance 4 Ω DC resistance, Re 3.8 Ω Voice coil inductance, Le 0.13 mH Effective piston area, Sd 70 cm2 Voice coil diameter 30.5 mm Voice coil height 15 mm Air gap height 5 mm Linear coil travel (p-p) 10 mm Magnetic flux density 1.08 T Magnet weight 0.1 kg Net weight 0.78 kg Free air resonance, Fs 41 Hz Sensitivity (2.83V/1m) 89 dB Mechanical Q-factor, Qms 3.71 Electrical Q-factor, Qes 0.29 Total Q-factor, Qts 0.27 Moving mass incl. air,Mms 7.2 g Force factor, Bl 4.9 Tm Equivalent volume, Vas 14.6 liters Compliance, Cms 2.09 mm/N Mechanical loss, Rms 0.5 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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