SB Acoustics TW29RN-B-4
Features
- Non-resonant membrane construction for minimal high frequency splitting.
- Two-piece aluminum front panel with integrated.
- Mechanical decoupling. Double symmetrical compression chambers for improved dynamics.
- Double copper caps for absolute minimum voice coil inductance and minimum phase shift.
- High saturation neodymium motor system with T-shaped pole piece for reduced distortion.
- Non-reflective cast aluminum chamber with optimized damping for improved dynamics.
- Flat flow optimized magnet structure for optimal coupling to the rear chamber.
- CCAW voice coil for low moving mass.
- Long-life silver lead wires.
- Low resonant frequency for extended operating 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 travel (p-p) 0.5 mm
- Moving mass incl. air, Mms 0.44 g
- Free air resonance, Fs 700 Hz
- Sensitivity (2.83 V / 1 m) 96 dB
- Mechanical Q-factor, Qms 2.1
- Electrical Q-factor, Qes 0.65
- Total Q-factor, Qts 0.49
- Force factor, Bl 3.1 Tm
- Rated power handling* 80 W
- Magnetic flux density 1.5 T
- Magnet weight 0.10 kg
- Net weight 0.4 kg
* IEC 268-5, high-pass Butterworth, 2600 Hz, 12 dB/oct.
