SB Acoustics SB15NRX2C30-8 5" Norex Cone Woofer
Features:
- Vented cast aluminum chassis for optimum strength and low compression
- Proprietary cone material with natural fibers made in-house
- Soft low damping rubber surround for improved transient response
- Non-conducting fiber glass voice coil former for minimum damping
- Extended copper sleeve on pole piece for low inductance and low distortion
- CCAW voice coil for reduced moving mass
- Long life silver lead wires
- Vented pole piece for reduced compression
Specifications:
- Nominal Impedance 8 ?
- DC resistance, Re 5.9 ?
- Voice coil inductance, Le 0.14 mH
- Effective piston area, Sd 82 cm2
- Voice coil diameter 30.5 mm
- Voice coil height 15 mm
- Air gap height 5 mm
- Linear coil travel (p-p) 10 mm
- Magnetic flux density 1.0 T
- Magnet weight 0.54 kg
- Net weight 1.46 kg
- Free air resonance, Fs 36.5 Hz
- Sensitivity (2.83V/1m) 86.5 dB
- Recommended Frequency Range 40-4500 Hz
- Mechanical Q-factor, Qms 3.48
- Electrical Q-factor, Qes 0.37
- Total Q-factor, Qts 0.34
- Moving mass incl. air,Mms 9.1 g
- Force factor, Bl 5.75 Tm
- Equivalent volume, Vas 20 liters
- Compliance, Cms 2.10 mm/N
- Mechanical loss, Rms 0.6 kg/s
- Rated power handling* 50 W
* IEC 268-5, T/S parameters measured on drive units that are broken in.