SB Acoustics Satori MW19TX / TeXtreme

The SB Acoustics SATORI MW19TX 8 inch mid-woofer with patented TExtreme diaphragm is available in 4 Ohm and 8 Ohm versions. The ultra-light and extremely stable diaphragm is driven by a powerful neodymium motor. The resonance frequency around 30 Hz lies far outside the usable range, allowing the driver to perform extremely linearly within the usable range and making it ideal for 2-way use or as a woofer. The generously ventilated centering spider optimizes the rear compression behavior to a maximum and provides additional cooling. Features: Advanced TExtreme® cone Ventilated, aerodynamic die-cast aluminum chassis Soft rubber surround with low damping Advanced BIMAX spider Powerful, optimized neodymium motor system with low distortion Extended copper sleeve on the pole shoe Non-conductive fiberglass voice coil former Ventilated pole shoe and voice coil Lightweight CCAW voice coil Durable silver wires Specifications 4 Ohm version: Nominal impedance 4 Ω Frequency range 80Hz - 3.5kHz DC resistance, Re 3.4 Ω Voice coil inductance, Le 0.14 mH Effective diaphragm area, Sd 158 cm2 Voice coil diameter 39 mm Voice coil height 19.6 mm Air gap height 6 mm Linear coil excursion (p-p) 13.6 mm Magnetic flux density 1.1 T Magnet weight 0.15 kg Net weight 1.46 kg Free air resonance, Fs 32 Hz Sensitivity (2.83V/1m) 93 dB Mechanical Q factor, Qms 5.43 Electrical Q factor, Qes 0.28 Total Q factor, Qts 0.27 Moving mass incl. air, Mms 16.2 g Force factor, Bl 6.3 Tm Equivalent volume, Vas 53.2 liters Compliance, Cms 1.52 mm/N Mechanical loss, Rms 0.6 kg/s Nominal power handling* 70 W * IEC 268-5, T/S parameters measured on broken-in drivers. Specifications 8 Ohm version: Nominal impedance 8 Ω Frequency range 80Hz - 3.5kHz DC resistance, Re 6.0 Ω Voice coil inductance, Le 0.20 mH Effective diaphragm area, Sd 158 cm2 Voice coil diameter 39 mm Voice coil height 19.4 mm Air gap height 6 mm Linear coil excursion (p-p) 13.4 mm Magnetic flux density 1.1 T Magnet weight 0.15 kg Net weight 1.46 kg Free air resonance, Fs 33 Hz Sensitivity (2.83V/1m) 90 dB Mechanical Q factor, Qms 6.47 Electrical Q factor, Qes 0.35 Total Q factor, Qts 0.33 Moving mass incl. air, Mms 15.6 g Force factor, Bl 7.5 Tm Equivalent volume, Vas 53.4 liters Compliance, Cms 1.52 mm/N Mechanical loss, Rms 0.5 kg/s Nominal power handling* 70 W * IEC 268-5, T/S parameters measured on broken-in drivers. Dimensions: