SB ACOUSTICS SB29SDAC-C000-4, 29mm TEXTILE DOME NEODYMIUM TWEETERFeatures Large surround dome for increased acoustic output Dual balanced compression chamber for improved dynamics Copper cap for reduced voice coil inductance and minimum phase shift Saturation controlled motor system for low distortion Non-reflective rear chamber with optimized damping for improved dynamics Flow optimized vented pole piece for optimum coupling to rear chamber CCAW voice coil for low moving mass Long life silver lead wires Low resonance frequency Cast aluminium faceplate Specs Nominal Impedance 4 Ω DC resistance, Re 3.0 Ω Voice coil inductance, Le 0.05 mH Effective piston area, Sd 9.6 cm2 Voice coil diameter 29 mm Voice coil height 2.0 mm Air gap height 2.5 mm Linear coil travel (p-p) 0.5 mm Moving mass incl. air, Mms 0.45 g Free air resonance, Fs 600 Hz Sensitivity (2.83 V / 1 m) 93 dB Mechanical Q-factor, Qms 2.94 Electrical Q-factor, Qes 1.09 Total Q-factor, Qts 0.8 Force factor, Bl 2.4 Tm Rated power handling* 60 W Magnetic flux density 1.1 T Magnet weight 0.22 kg Net weight 0.5 kg * IEC 268-5, high-pass Butterworth, 2600 Hz, 12 dB/oct.
