SB Acoustics SB20FRPC30-8 Paper Cone Full Range
Features
- Proprietary cone material with natural fibers made in-house
- Light weight foam surround
- Optimized whizzer cone for smooth high frequency extension
- Phase plug for controlled radiation
- Large spider for improved linearity
- Optimized motor system
- Vented reinforced plastic chassis
- Non-conductive coil former
- Long life lead wires
- Extended copper sleeve on pole piece
Specifications
- Nominal Impedance 8 ?
- DC resistance, Re 6.0 ?
- Voice coil inductance, Le 0.22 mH
- Effective piston area, Sd 216 cm2
- Voice coil diameter 30.5 mm
- Voice coil height 13.2 mm
- Air gap height 5 mm
- Linear coil travel (p-p) 8.2 mm
- Magnetic flux density 1.2 T
- Magnet weight 0.54 kg
- Net weight 1.43 kg
- Free air resonance, Fs 39.4 Hz
- Sensitivity (2.83V/1m) 92 dB
- Mechanical Q-factor, Qms 10.1
- Electrical Q-factor, Qes 0.47
- Total Q-factor, Qts 0.45
- Moving mass incl. air,Mms 16.3 g
- Force factor, Bl 7.15 Tm
- Equivalent volume, Vas 66.3 liters
- Compliance, Cms 1.0 mm/N
- Mechanical loss, Rms 0.4 kg/s
- Rated power handling* 40 W
* IEC 268-5, T/S parameters measured on drive units that are broken in.
Frequently Asked Questions
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