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 |