SB Acoustics TW29R-S-4
Features
- Non-resonant diaphragm design for minimum high frequency break-up
- Two part aluminium 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
- Saturation controlled motor system with T-shaped pole piece for lower distortion
- Non-reflective cast aluminium 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 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 travel (p-p) 0.5 mm
- Moving mass incl. air, Mms 0.44 g
- Free air resonance, Fs 600 Hz
- Sensitivity (2.83 V / 1 m) 92 dB
- Mechanical Q-factor, Qms 2.0
- Electrical Q-factor, Qes 1.24
- Total Q-factor, Qts 0.77
- Force factor, Bl 2.0 Tm
- Rated power handling* 80 W
- Magnetic flux density 1.0 T
- Magnet weight 0.22 kg
- Net weight 0.53 kg
* IEC 268-5, high-pass Butterworth, 2600 Hz, 12 dB/oct.
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.jpg "Preview: SB Acoustics TW29R-S-4")
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