SB Acoustics TW29R
Features
- Non-resonant diaphragm design for minimum high frequency break-up
- Two part aluminum faceplate with integrated mechanical decoupling
- Dual balanced compression chambers for improved dynamics
- Dual copper caps for absolute minimum voice coil inductance and minimum phase shift
- High saturation neodymium motor system with T-shaped pole piece for lower distortion
- Non-reflective cast aluminum chamber with optimized damping for improved dynamics
- Shallow flow optimized magnet structure for optimum coupling to rear chamber
- CCAW voice coil for low moving mass
- Long life silver lead wires
- Low resonance frequency for extended range
Specs
- Nominal Impedance 8 Ω
- DC resistance, Re 6.2 Ω
- Voice coil inductance, Le 0.04 mH
- Effective piston area, Sd 9.6 cm2
- Voice coil diameter 29 mm
- Voice coil height 2.1 mm
- Air gap height 2.5 mm
- Linear coil travel (p-p) 0.4 mm
- Moving mass incl. air, Mms 0.42 g
- Free air resonance, Fs 650 Hz
- Sensitivity (2.83V/1m) 93 dB
- Mechanical Q-factor, Qms 1.74
- Electrical Q-factor, Qes 0.66
- Total Q-factor, Qts 0.48
- Force factor, Bl 4.1 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.
