SB Acoustics TW29BN-B-4 Tweeter
Features
- Beryllium dome tweeter for resonance-free tweeter extension
- Two-piece aluminium front plate with integrated mechanical decoupling
- Two symmetrical compression chambers for improved dynamics
- Double copper caps for absolute minimum voice coil inductance and minimum phase shifting
- Highly saturated neodymium motor system with T-shaped pole piece for reduced distortion
- Non-reflective cast aluminium chamber with optimised damping for improved dynamics
- Shallow-flow optimised magnet structure for optimal coupling to the rear chamber
- CCAW voice coil for low moving mass
- Long-life silver conducting wires
- Low resonant frequency for extended range
Specs
- Nominal impedance 4 Ω
- DC resistance, Re 3.0 Ω
- Voice coil inductance, Le 0.02 mH
- Effective piston area, Sd 9.6 cm2
- Voice coil diameter 29.0 mm
- Voice coil height 2.0 mm
- Air gap height 2.5 mm
- Linear coil stroke (p-p) 0.5 mm
- Moving mass incl. air, Mms 0.46 g
- Free air resonance, Fs 700 Hz
- Sensitivity (2.83 V / 1 m) 95 dB
- Mechanical Q-factor, Qms 2.1
- Electrical Q-factor, Qes 0.60
- Total Q-factor, Qts 0.46
- Force factor, Bl 3.1 Tm
- Rated power handling* 80 W
- Magnetic flux density 1.5 T
- Magnet weight 0.11 kg
- Net weight 0.41 kg
* IEC 268-5, high-pass Butterworth, 2600 Hz, 12 dB/oct.
