Dome Tweeter SB-Acoustics SB26CDC-C000-4 Ceramic Speaker

Features
Aluminium/Ceramic Dome
Phase optimized diaphragm design for coherent high frequency radiation
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

Specs
Nominal Impedance 4 Ω
DC resistance, Re 3.2 Ω
Voice coil inductance, Le 0.04 mH
Effective piston area, Sd 6.2 cm2
Voice coil diameter 25.4 mm
Voice coil height 1.3 mm
Air gap height 2.5 mm
Linear coil travel (p-p) 1.2 mm
Moving mass incl. air, Mms 0.38 g
Free air resonance, Fs 690 Hz
Sensitivity (2.83V/1m) 89 dB
Mechanical Q-factor, Qms 2.55
Electrical Q-factor, Qes 2.00
Total Q-factor, Qts 1.12
Force factor, Bl 1.6 Tm
Rated power handling* 100 W
Magnetic flux density 1.15 T
Magnet weight 0.22 g
Net weight 0.5 kg
* IEC 268-5, high-pass Butterworth, 2600 Hz, 12 dB/oct.