Midwoofer SB-Acoustics Satori 7.5" MW19PNW-8 Paper Speaker

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 for reduced compression
Low piston to chassis diameter ratio
Gasket and bolt hole protrusions for reduced coupling to speaker cabinet

Specs
Nominal Impedance 8 Ω
DC resistance, Re 6.0 Ω
Voice coil inductance, Le 0.20 mH
Effective piston area, Sd 158 cm2
Voice coil diameter 39 mm
Voice coil height 19.4 mm
Air gap height 6 mm
Linear coil travel (p-p) 13.4 mm
Magnetic flux density 1.1 T
Magnet weight 0.15 kg
Net weight 1.48 kg
Free air resonance, Fs 29.5 Hz
Sensitivity (2.83V/1m) 89 dB
Mechanical Q-factor, Qms 4.18
Electrical Q-factor, Qes 0.32
Total Q-factor, Qts 0.29
Moving mass incl. air,Mms 16.9 g
Force factor, Bl 7.7 Tm
Equivalent volume, Vas 61 liters
Compliance, Cms 1.72 mm/N
Mechanical loss, Rms 0.75 kg/s
Rated power handling* 70 W
* IEC 268-5, T/S parameters measured on drive units that are broken in.