SB29BAC-C000-4 / Beryllium
Features
- Beryllium dome for non-resonant high frequency extension
- Large surround dome for increased acoustic output
- Copper cap for reduced voice coil inductance and minimum phase shift
- Saturation controlled motor system for low distortion
- Dual balanced compression chambers for improved dynamics
- Flow optimized vented pole piece for optimum coupling to rear chamber
- Non-reflective rear chamber with optimized damping for improved dynamics
- CCAW voice coil for low moving mass
- Long life flexible lead wires
- Cast aluminium faceplate
- Low resonance frequency
Additional information
| Nominal Impedance | 4 Ω |
|---|---|
| DC resistance | Re 3.0 Ω |
| Voice coil inductance | Le 0.05 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 0.46 g |
| Free air resonance | Fs 650 Hz |
| Sensitivity | (2.83V/1m) 93 dB |
| Mechanical Q-factor | Qms 2.71 |
| Electrical Q-factor | Qes 1.22 |
| Total Q-factor | Qts 0.84 |
| Force factor | Bl 2.4 Tm |
| Rated power handling | *80 W |
| Magnetic flux density | 1.1 T |
| Magnet weight | 0.22 kg |
| Net Weight | 0.5 kg |
| Note | *IEC 268-5, high-pass Butterworth, 2600 Hz, 12 dB/oct |
